I just completed Grand Theft Auto: Liberty City Stories (on PS2), and besides the occasionally dark, impossible-to-see-a-damn-thing graphics, I enjoyed it quite a bit. Maybe Rockstar will fix that problem before they transistion Grand Theft Auto: Vice City Stories from PSP to PS2 (assuming they do). GTAVice.com has a shot of that game's cover art:
I grew up on Galveston Island, during the 1980s, so playing GTA: Vice City was sometimes, oddly, yet pleasurably, like time travel.
The countdown for GTA IV has begun, and someone from Planet Grand Theft Auto has created this cool teaser trailer (it's really more of a history of the franchise than a teaser, but it will get you excited if you like the games).