Afloat 2.2 Adds Support For Snow Leopard and New Features
When Snow Leopard was launched, many applications broke because of compatibility issue. Afloat was one of them (mainly due to the plugsuit issue). The good news is, Afloat 2.2 was launched to patch up the issue. Now you can get Afloat running smoothly in Snow Leopard.
For those who have not heard of Afloat, it is an useful software that you can use to keep an application window “always on top” of all other windows. One thing for sure, Afloat 2.2 brings some new features that are not available in previous version.

Windows Vista and 7 come with User Account Control (UAC) that controls the permissions the users have for running each application. Due to this restriction, many program in Win XP that require administrators privilege will not be able to run smoothly in Vista or Win 7. In such cases, you can use the 
How many applications do you open at one time on you Mac? One? Not likely. Ten? Possible. My MacBook white always runs at least three applications at a time, with several windows for each and a constant switching among them.