The new iMacs boast LED-backlit 21.5- and 27-inch widescreen displays in an edge-to-edge glass design and all aluminum enclosure. They’re available with Intel (INTC) Core 2 Duo processors starting at 3.06 GHz, and Core i5 and i7 quad-core processors for even better performance. The low-end model is priced at $1,199, the same as the past generation, but its high-end sibling is now $200 cheaper, at $1,999.

The new MacBook features an 13.3-inch LED backlit display, a multitouch trackpad, and a $999 price tag. Though still housed in white polycarbonate plastic, it features an updated unibody design borrowed from the MacBook Pro.

The successor to the Mighty Mouse, Magic Mouse, eliminates mechanical buttons, instead, employing the same multitouch surface found on the iPhone, iPod touch, and Mac notebook trackpads, allowing users to navigate their desktops with simple gesture commands.

Accompanying the Magic Mouse is a a new Apple Remote. It’s got a new design and is, predictably, housed in aluminum.

Finally, Apple (AAPL) also updated the Mac mini. While its design is largely identical to that of its predecessor, it offers far more storage. Starting at $599, the entry-level Mac mini features a faster 2.26 GHz Intel Core 2 Duo processor and 2GB of DDR3 1066 MHz memory, a 160GB hard drive, five USB 2.0 ports, FireWire 800, Nvidia GeForce 9400M integrated graphics and a SuperDrive.

There’s also a new $999 Mac mini that’s specially configured with a Mac OS X Snow Leopard Server. It’s outfitted with two 500GB hard drives for a total of 1TB of server storage.

Quite a refresh and one analysts are already crowing about. In a bulletin released after the announcement, Piper Jaffray’s Gene Munster said Apple’s new machines will undoubtedly improve the company’s prospects for the December quarter.

“We expect the new iMacs, and to a lesser degree the new Mac minis, to help the desktop category rebound in the Dec. quarter,” Munster wrote. “In other words, the headwind that existed in the Sept. quarter due to aging Mac desktops has now turned into a tailwind for Mac units in the Dec. quarter….Bottom Line: Street Mac numbers may also be conservative if positive trends continue coupled with new Macs in the quarter.”

In fact, it could be argued that public confirmation of Jobs’s health since his return to the company was truly the most significant announcement of the day. As Morgan Keegan analyst Tavis McCourt quipped in a research note issued after the event, “Aside from a lack of a camera on the iPod Touch, everything announced was generally in line with expectations, although it all tends to sound much more revolutionary when Steve Jobs is spinning the story. It was clearly a positive to see him back on stage.”

Piper Jaffray analyst Gene Munster felt similarly: “There was some debate over whether Steve Jobs would deliver the presentation at [the] event,” he said in a note to clients. “He did, and we see this as a sign that he has returned to work at near-full capacity following his health-related leave of absence. We continue to believe he is the primary spokesman and active leader of Apple.”

Munster went on to note that the event was otherwise a bit of a disappointment. Certainly, the lack of a new iPod touch with a built-in video camera, which was viewed by many as almost a sure thing, was a bit of a letdown.

“We were expecting a new iPod touch model with a video camera, which Apple did not announce,” Munster said. “The lack of a camera may be due to last-minute quality issues, or it may also be a strategic decision to differentiate the nano from the touch, and the touch from the iPhone. Ultimately we see the lack of a camera in the touch as a move to push users toward the iPhone and drive purchases of multiple devices per customer by segmenting the product lines.”

Or to position the iPod touch as a truly competitive portable gaming device. Certainly, that’s what appeared to be going on yesterday as Apple (AAPL) brought out Ubisoft, Tapulous, Gameloft, and Electronic Arts (ERTS) in quick succession to demo their upcoming new games. And then, there were the data points. Consider these:

• 20 million iPod touches sold to date
• Over 100 million iTunes accounts
• Over 1.8 billion apps downloaded to date. Impressive given that Apple passed one billion apps downloaded just last April
• Over 75,000 apps available
• 21,000 of those 75,000 are games and entertainment apps

So nearly one third of all iPhone OS apps sold to date are games and entertainment apps. Clearly, Jobs was on to something when he told The Wall Street Journal in November 2008, “I think the iPhone and iPod touch may emerge as really viable devices in the mobile games market.”

The new machine is largely as predicted. It boasts Apple’s new unibody chassis and a glass touch trackpad. At 6.6 pounds, it’s the world’s lightest notebook. It has a hi-res backlit display. “The best display we’ve ever shipped in a notebook,” says Schiller, with a 60 percent greater color gamut than other machines.

The new Pro has the same glossy screen as its brethren, but thankfully, it’s available with a $50 anti-glare option as well.

Finally, it incorporates a new battery pack that boasts an eight-hour charge life and 1000 recharges, three times the industry standard. It’s not the zinc battery that some observers were expecting, but very innovative nonetheless. There’s a chip in the battery that intelligently monitors an “adaptive charge,” whatever that means. Bottom line: three hours more battery life than previous machines. According to Apple (AAPL), the battery should last five years, which will result in fewer batteries and landfills and makes this 17-inch model a greener machine.

The new Pro 17-inch MacBook starts at $2799 and will ship at the end of the month.

There’s a lot of emphasis at this unveiling on environmental concerns, reducing the footprint for manufacturing the new notebooks.

Says Ives: “We’ve refined every detail in service of the user.”

Steve Jobs announces that it’s time for Q&A, but with a caveat. No questions about the economy, he says, or Apple’s financial performance because there will be an earnings report next week. And no questions about “my health,” he adds, as a new slide appears on the big screen above him showing his blood pressure.

As the audience laughs, Jobs welcomes Apple COO Tim Cook and Phil Schiller, senior vice president of worldwide marketing, to the stage to take questions from the audience.

Apple (AAPL) does not have an exclusive on the new Nvidia chip, but it will be first to market. “And we’re buying a lot of chips.”

Why no Blu-ray? “Blu-ray is just a bag of hurts,” says Jobs. Apple is waiting things out before “passing that cost burden on to consumers.”

Jobs expects the redesigns to trigger a refresh cycle in both the MacBook and MacBook Pro.

Someone asks why there are no matte screens. Answer: “The vast majority of our customers prefer a glossy finish.”

The 17-inch MacBook Pro is still available, but it has not been refreshed like the other models.

Final question: “Do touchscreens make sense on laptops?” Jobs’s reply: “We’ve experimented with them, but they don’t make a lot of sense to us.”

So no tablet.

And with that, the event is over.

Also: A new LED display, 24-inch built-in iSight, built-in speakers and MagSafe.

Cost: $899; available in November.

As for the existing standard white plastic MacBook model, Apple (AAPL) is dropping the price to $999, according to Steve Jobs.

Back to the refreshed line, MacBook users have been asking for “a metal enclosure, faster graphics, and LED display,” Jobs explains. “We’re giving it to them.”

Similar features as the new Pro: unibody enclosure, glass trackpad, faster graphics Nvidia 9400 graphics chip and a five-time increase in graphics performance. The new display is designed with laptops in mind.

And continuing a theme at this event, the new MacBook is environmentally friendly. It has also been awarded the EPA EPEAT designation.

The new metal 13.3-inch MacBook sells for $1,299. The $1,599 model buys a faster processor.

Units start shipping today, and will be in stores tomorrow.

Ives describes how excess aluminum left over from the original piece used in manufacturing is recycled throughout the process. The precision aluminum unibody enclosure that Apple used in the MacBook Air, he notes, is now being extended to the rest of the Mac notebook lineup.

Jobs returns to the stage. He explains that chipmaker Nvidia approached Apple (AAPL) about a new graphics chip that could be used in desktops. Apple decided to adopt it for laptops, however. The chip, called GForce 9400M, delivers graphics up to five times faster than Apple’s current graphics chips.

New notebooks will boast a multi-touch glass trackpad. The entire trackpad is the button.

The trackpad supports multifinger gestures, including some new ones. Four-finger gestures can control AMD app-switching.

A full-glass instant-on LED displays all connectors on one side. The notebooks feature next-gen graphics, mini-display port connector and a magnetic latch.

And they’re environmentally responsible. The unibody design, for example, requires only half the number of parts of Apple’s previous notebooks.

Jobs passes a chassis around the audience, and it is, indeed, very slick. “A tour de force of engineering,” says Jobs. Holding one of these in your hands, it’s tough to disagree.

More coming …