F-100 here, in case it makes any difference. On a 2Gb card, I have about 50 or so homebrews/ports in a folder called Games. Out of those, I only really play these very often:
Payback (paid-for version)
Abuse
STPPC2x (obviously)
Although I also play the following when I remember they are on there: Sqdef, Reword, Blix, Boomshine2x, Drill2x, Ghostpix, LiquidWar, Nethack, OpenTyrian, Powder2x, SuperTux. The rest are things that I tried once and never bothered to delete, or things that I have forgotten which name corresponds to which game and so haven't played very often.
The rest of the card (approximately 2/3rds or its size) is emulators and ROM's and a small area for applications (things like VNCServer2x, STerm, the "upgraded" usbnet module etc.). I have another 2Gb card for the GP2X but the only thing on there is a newer version of MAME that I used once and found I preferred the old version (because it had no new games that I wanted anyway).
