Overall, I believe Snow Leopard will help keep the Mac an appealing choice for computer buyers, and I can recommend it to existing Mac owners seeking more speed and disk space, or wanting to more easily use Exchange. But I don’t consider Snow Leopard a must-have upgrade for average consumers. It’s more of a nice-to-have upgrade. If you’re happy with Leopard, there’s no reason to rush out and get Snow Leopard.

– Walt Mossberg, The Wall Street Journal

The changes here are modest, and the performance gains look promising but beyond the built in apps, just a promise. If you’re looking for more bells and whistles, you can hold off on this upgrade for at least awhile. But my thought is that Snow Leopard’s biggest feature is that it doesn’t have any new features, but that what is already there has been refined, one step closer to perfection. They just better roll out some new features next time, because the invisible refinement upgrade only works once every few decades.

– Brian Lam, Gizmodo

Here’s the thing about Snow Leopard, the single inescapable fact that hung over our heads as we ran our tests and took our screenshots and made our graphs: it’s $30. $30! If you’re a Leopard user you have virtually no reason to skip over 10.6, unless you’ve somehow built a mission-critical production workflow around an InputManager hack (in which case, well, have fun with 10.5 for the rest of your life). Sure, maybe wait a few weeks for things like Growl and MenuMeters to be updated, and if your livelihood depends on QuickTime you might want to hold off, but for everyone else the sheer amount of little tweaks and added functionality in 10.6 more than justifies skipping that last round of drinks at the bar–hell, we’re guessing Exchange support alone has made the sale for a lot of people.

– Joshua Topolsky, Engadget

Snow Leopard is Apple’s lowest-priced OS update in eight years. Granted, it’s a collection of feature tweaks and upgrades, as well as under-the-hood modifications that might not pay off for users immediately. But the price of upgrading is so low that I’ve really got to recommend it for all but the most casual, low-impact Mac users. If you’ve got a 32-bit Intel Mac (that is, one powered by a Core Solo or Core Duo processor), the benefit of this upgrade will be a little less. But for most Mac users, especially the kind of person who reads a Web site devoted to the subject, the assorted benefits of Snow Leopard outweigh the price tag. I’d pay $30 just for the improved volume ejection, the ability to create services with Automator, and the improvements to the Dock and Exposé–though I admit I’d pay slightly more to not have the misguided QuickTime Player X as a part of the package. If you’re a user who connects to an Exchange server every day, upgrading to Snow Leopard really is a no-brainer. For everyone else, maybe it’s not quite a no-brainer-but it’s awfully close. Snow Leopard is a great value, and any serious Mac user should upgrade now.

– Jason Snell, Macworld

Impressive and important, it’s an update that will revitalize your existing Mac even though you’ll be stumped for a quick five-minute demo that convinces the people around you that much of anything has changed at all.

– Andy Ihnatko, Chicago Sun Times

In my experience, Mac OS X was already a superior operating system to Windows. With Exchange and other technologies, Snow Leopard adds bite, especially for business. But as upgrades go, this one is relatively tame.

– Ed Baig, USA Today

If you’re already running Leopard, paying the $30 for Snow Leopard is a no-brainer. You’ll feel the leap forward in speed polish, and you’ll keep experiencing those ‘oh, that’s nice’ moments for weeks to come. If you’re running something earlier, the decision isn’t as clear cut; you’ll have to pay $170 and get Snow Leopard with Apple’s creative-software suites–whether you want them or not. Either way, the big story here isn’t really Snow Leopard. It’s the radical concept of a software update that’s smaller, faster and better–instead of bigger, slower and more bloated. May the rest of the industry take the hint.

– David Pogue, New York Times

We have been testing the iPhone for two weeks, in multiple usage scenarios, in cities across the country. Our verdict is that, despite some flaws and feature omissions, the iPhone is, on balance, a beautiful and breakthrough handheld computer. Its software, especially, sets a new bar for the smart-phone industry, and its clever finger-touch interface, which dispenses with a stylus and most buttons, works well, though it sometimes adds steps to common functions. … The iPhone’s most controversial feature, the omission of a physical keyboard in favor of a virtual keyboard on the screen, turned out in our tests to be a nonissue, despite our deep initial skepticism. After five days of use, Walt — who did most of the testing for this review — was able to type on it as quickly and accurately as he could on the Palm Treo he has used for years. This was partly because of smart software that corrects typing errors on the fly.

–Walt Mossberg and Katherine Boehret, The Wall Street Journal

The phone is so sleek and thin, it makes Treos and BlackBerrys look obese. The glass gets smudgy—a sleeve wipes it clean–but it doesn’t scratch easily. I’ve walked around with an iPhone in my pocket for two weeks, naked and unprotected (the iPhone, that is, not me), and there’s not a mark on it. … But the bigger achievement is the software. It’s fast, beautiful, menu free, and dead simple to operate. You can’t get lost, because the solitary physical button below the screen always opens the Home page, arrayed with icons for the iPhone’s 16 functions. … Apple says one battery charge is enough for 8 hours of calls, 7 hours of video or 24 hours of audio. My results weren’t quite as impressive: I got 5 hours of video and 23 hours of audio, probably because I didn’t turn off the phone, Wi-Fi and other features, as Apple did in its tests. In practice, you’ll probably wind up recharging about every other day. So yes, the iPhone is amazing. But no, it’s not perfect.”

–David Pogue, New York Times

If you’re looking for quibbles, flaws and omissions, you’ll certainly find them in this first version of the iPhone. (I’ll get to these below.) But the bottom line is that the iPhone is a significant leap. It’s a superbly engineered, cleverly designed and imaginatively implemented approach to a problem that no one has cracked to date: merging a phone handset, an Internet navigator and a media player in a package where every component shines, and the features are welcoming rather than foreboding. The iPhone is the rare convergence device where things actually converge. … In a sense, the iPhone has already made its mark. Even those who never buy one will benefit from its advances, as competitors have already taken Apple’s achievements as a wake-up call to improve their own products. But for all its virtues, the iPhone is still a risky venture because it’s yet to be proven that, despite the wow factor, millions of people are ready to pay several hundred dollars more than the going rate for phones—and in some cases, paying even more to bail out of their current mobile contracts.”

–Steven Levy, Newsweek

After months of hype, Apple has delivered a prodigy–a slender fashion phone, a slick iPod and an Internet experience unlike any before it on a mobile handset. Still, iPhone isn’t perfect, or even the most ideal smart phone for every user. It’s pricey. It lacks certain features found on some rival devices. AT&T’s coverage was spotty in some areas I tested it in. Your employer may prevent you from receiving corporate email on the device. … On the data side, [iPhone] works through AT&T’s Edge network, which is pokey compared with third-generation, or 3G, data networks used with other phones. At times, I fell off the Edge and lost coverage. Even at its best, Edge never felt close to the broadband-type speeds I experience on my home network. Assuming Apple gets around to supporting 3G in the future, you’d ultimately have to buy a new 3G-capable iPhone for improved network performance, not that Apple is ready to announce one.”

–Edward Baig, USA Today

No, Apple is most certainly not ready to announce a 3G-capable iPhone, as this call-and-response Q&A between Walt Mossberg and Steve Jobs demonstrates:

Walt: When will there be an iPhone that runs on the fastest, so-called “3G” networks?
Steve: Walt, you know we don’t talk about future products. Again, Wi-Fi is far faster than 3G networks.
Walt: Will you follow the pattern you set with the iPod and bring out less costly models? If so, when?
Steve: We don’t talk about future products.
Walt: This first model is missing some features some other smart phones have, like video recording, instant messaging and real-time GPS navigation. Do you plan to upgrade iPhones purchased now so they have these features? If so, when?
Steve: We don’t talk about future products.

Over at Valleywag, Nick Denton’s whipped up a helpful chart scoring the critical consensus on the device.