Compiz Fusion.
Who knows what that is? I’ll make an intro to it anyway, just in case.
Compiz Fusion is a Window Manager for Linux (specifically, for X, which most distros use anyway). But it goes beyond the features you would usually expect in a typical OS; it has an array of 3D effects which not only look awesome, but have some degree of practicality.
It is actually a merge of two similar projects called Beryl and Compiz, the latter of which was forked from Beryl after some disputes over methods used for handling of documentation, updates, etc. I believe both projects were merged about two years ago, possibly a bit less. Read more... (461 words, estimated 1:51 mins reading time)