The Engineering Windows 7 blog has a list of thirty six “visible” changes coming in the next version of Windows 7. Here’s a quickie list of the ones worth knowing and hotly anticipating or whatever: Aero Peek —where all the windows on the desktop become transparent except the one you’re highlighting—will now work with Alt+Tab. Just pause for a second on the thumbnail you want to scope out. Pretty awesome, since it means less mousing, more peeking. The Windows key button + [number key] won’t just launch a new instance of the corresponding app in the Taskbar, it’ll switch to the app if it’s already running.

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What’s New in the Next Release of Windows 7 [Windows 7]