Hacker Disguise Trojan Horse as Windows 7 Compatibility Checker

Hackers Disguise Trojan Horse as Windows 7 Compatibility Checker | Maximum PC
Be on the lookout for a rogue program masquerading as a piece of
software that helps users determine whether or not PCs are compatible
with Windows 7, warns
security firm BitDefender.
...

A comprehensive overview of the new features/changes in Windows 7

Windows 7 Review: XP vs Vista vs 7 in 80+ Benchmarks | Maximum PC
Note: Homegroup - this section may seem discouraging for those who will be networking a Windows 7 machine with machines running older versions of Windows. But, do not despair, you can easily connect and share between machines, just like Vista could. The Homegroup feature just ADDS another level to what you can do (although just for sharing between Windows 7 machines).

VistaSwitcher - Alt+Tab replacement for XP, Vista and Windows 7

VistaSwitcher is a Ridiculously Awesome Alt-Tab Replacement :: the How-To Geek

This is a great Alt+Tab replacement viewer. It has a big preview, and a very legible list of the open programs. Plus, you can change how it works and with what keys. 32bit and 64bit versions for Windows XP, Vista and Windows 7.