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.”

Platforms and products is one of four new operating units created in this latest restructuring, which also birthed an advanced technology group, a marketing group and a consumer group. Why this particular arrangement is any better than AMD’s reorg of a year ago–which spawned the Central Engineering Organization and Computing Solutions Group–is anyone’s guess. AMD CEO Dirk Meyer says it will optimize AMD’s operations and drive the company toward sustained profitability and long-term success. But then he said that about the last one as well.

Oh, speaking of that last reorg, Randy Allen, the 24-year AMD veteran who figured so prominently in the company, is leaving. AMD (AMD) offered no explanation for his departure and there’s no word yet on where he’s headed. That said, some surmise that he may be following a path beaten by two of his former colleagues, Raja Koduri and Bob Drebin, who both fled AMD for Apple (AAPL)

For now. Because Nehalem, Intel’s next-generation processor, is expected to go into production soon and it’s packing eight cores …

Headline, with apologies to America’s Finest News Source …

The new server chip, which puts four processors on a single silicon die, is the first of its kind and AMD’s shot at regaining some of the market its lost to a resurgent Intel. The company’s market share was about 25% in the middle of 2006. By mid-2007, it had slipped to close to 13%. “There is nothing that we would have been more excited about than getting it out earlier,” AMD CEO Hector Ruiz told eWeek. “But you know we are not making excuses. This is a damn difficult thing to do, as I’m sure you can imagine. …This is 600 million transistors on a chip, four cores, complex technology and tremendous architectural features. It was, frankly, a little tougher challenge than we had anticipated and it frustrated the hell out of us because we wanted to get it out there earlier.”

Of course you did. The Quad-Core AMD Opteron arrives at market nearly a year after Intel began shipping quad-core processors of its own and follows a string of consecutive quarterly losses. The stakes here have been high for quite a while. But is the quad-core Opteron the winning hand for which AMD hopes? Perhaps. Perhaps not. “Barcelona is not the sweeping challenge to Intel they wanted to make,” analyst Rob Enderle told the Austin American Statesman. “This keeps them in the game and competing. But it’s not a leadership position.”

Certainly, Intel doesn’t think so. This morning the company announced that it now expects third quarter revenue to be between $9.4 billion and $9.8 billion, improving on its previous guidance of $9 billion to $9.6 billion.