Free to download from the PS Store - comes with 2 games and a demo:
WipEout 2D - WipEout in 2D! Top down racer, with 4 tracks and 12 teams. Basic, but decent fun
Icebreaker - pretty lame Breakout clone
Scribble Shooter (demo) - scrolling shooter - style is like a series of doodles. Actually pretty decent!
There are half a dozen or so other games you can download - most are 79p.