1. Windows 8 looks totally different at first
When you first boot into Windows 8, you'll see a tile-based interface similar to that on the Xbox 360. This used to be called Metro before Microsoft suddenly changed/lost its mind, and in the spirit of orneriness, we're going to keep calling it that. Instead of the desktop, there's a series of live tiles that dynamically updat...you've stopped reading, haven't you. Anyway, if you're a PC "power user" you can go ahead and ignore this interface--just forget it exists. The stuff you need is in that "Desktop" link in the lower left.
2. ...but underneath Metro is a souped-up Windows 7
Oh yeah. Thats the stuff. Click "Desktop" and you're on the...desktop. It's like Windows 7. It basically is Windows 7. 7.1, maybe. Launch your digital distribution system of choice! Play games! Adjust graphics settings! Frag aliens! Defrag hard drives! Run more than one app at a time! All the stuff you love about Windows. It's all there. If there's stuff you don't love about Windows, it's probably still there too.
3. Windows 8's new interface is mostly for touchscreens
The apps for the new interface run fullscreen. Or you can set one to run in a third of the screen and another in two-thirds of the screen. Boom. Multitasking. They're optimized for touch interfaces, so they'll run great on a small tablet screen. On a non-touch desktop monitor? Not so great.
4. Xbox Smartglass is cool
Xbox Smartglass is legitimately cool. If you have an Xbox 360 and a Windows 8 PC or Windows tablet like the Surface, you can use Smartglass to remote-control your Xbox 360, and some games (like Halo 4) and apps (like HBO Go) have bonus content that shows up in Smartglass. It's like a roll-your-own Wii U. You can also get Smartglass for Android, though, and soon for iOS and Windows Phone too. The mobile apps are probably more useful, given that most people don't simultaneously sit at their PC and on the couch near the Xbox. But if you do, or you have a Windows RT tablet like the Surface RT, Smartglass will go great with your Xbox. Now you can spend more time with your console instead of your PC games!
5. The Windows Store is currently a ghost town
The Windows Store is Microsoft's way of making sure apps for the new Metro interface work across the huge array of devices that run the new interface, from powerful PCs to Windows RT tablets. The only apps you can run in the Metro interface are ones you install from the Windows Store.
6. The Windows store isn't really built for gamers
Because most games in the Windows Store have to work on low-powered Windows RT tablets as well as real computers, most of what's available so far are Fruit Ninja-level smartphone games. The only kinda-interesting thing so far is a Microsoft-made episodic adventure game called Adera, and as you can see from the screenshot, it's not really designed for the mouse-and-keyboard set. Or the "has ever played an adventure game" set.
7. but it has achievements!
Adera is one of the new "Xbox Games for Windows." Say what you will about Games for Windows Live (it was terrible), but at least the games were real PC games that used the powerful hardware you get on a PC. Feel like paying $5 so you can get Angry Birds Space on your gaming rig? So far the only "Xbox Games for Windows" are casual games with Achievements that count toward your Gamerscore. You know what? Forget we said anything. Go get those points.
8. It's not really necessary if you have 7, but it's super necessary if you don't
As a gamer, you don't need to be in a hurry to upgrade to Windows 8 if you're already running Windows 7. The new interface is clearly intended for small touchscreens, not high-res monitors. Windows 8 runs slightly faster than Windows 7 on the same hardware, it boots up faster, and there are nice tweaks to Windows Explorer, file copying, and a few other aspects of the desktop. But the differences between 7 and 8 aren't large enough or meaningful enough that gamers should feel compelled to plop down good money for an update.
So... should you upgrade to 8?
If you're on 7, you don't gain much apart from DirectX11.1 (which won't be coming to earlier versions of Windows) and a slightly faster computer--but upgrading isn't a bad move. Those of us who have upgraded are not displeased. That sounds like faint praise, and it is, but really, Windows 8 is a great operating system. It's a souped-up version of Windows 7 with a weird interface slapped overtop of the regular desktop. It's just hard to get excited about such a modest step up. If it didn't have the great desktop OS underneath the weird new interface, we'd be scathing. Scathing.
