heh.
Well, the idea's been done before as you said, but you also sort of built on it in a way. I especially liked how he jumped from the desktop to the internet etc. Using Minesweeper.exe as a bomb was priceless
You could have made it more impressive if you didn't use a generic stickman, and maybe he could have drawn some little cronies to help him out or something.
It also would have been cool as fuck if he leapt into Solitaire and threw cards everywhere to disorientate the mouse : P
Overall good stuff!