I love Aero Snap in Windows 7, and I've twittered about it before.

But now Windows 7 team posted a fascinating read about designing the Aero Snap. Insightful and having some suspense: they've considered dropping the feature before coming up with the snap and resize animations I love the most.

"Vertical Maximized" state is an excellent addition, and win+arrow keys keyboard shortcuts look very useful, have to try them.