Updated! OK, I guess this was inevitable. Two Three separate hacks are available to get some Windows 7 features working in Windows Vista. The first, for the new calculator utility, is sort of dubious, but the second two—for Aero Snaps and Aero Shake—are great ideas.
Windows 7 Calculator for Windows Vista
Aero Snap Beta - AeroSnap is a simple but powerful application that allows you to resize, arrange or maximize your desktop windows with just drag'n'drop. Simple drag a window to a side of your desktop to snap it or drag it to the top to maximize. When you drag it back to the last position, the last window size will be restored. Really easy, isn't it? It also works with multiple monitors!
Aero Shake - Free utility Aero Shake brings the Windows 7 Aero Shake feature to your pre-Windows 7 computer.
Thanks to EJ for the tip on the first two and to Robert B. for the third.
My Windows 7 Feature Focus series begins today, btw. Stay tuned…