It came out of the retro emulation community, so it has a couple of magnitudes more games available than that. Whether those old games appeal to you is a very good indicator for whether or not the Pandora is for you.
I spent about twenty minutes googling around trying to find a central repository/library/listing of games available/ported to it... with no luck. That would probably be important for gaining traction.
A community around these small handhelds such as the GP2X Wiz and the Dingoo A320 [0] has sprung up over the past couple of years. These small devices are cheap (about $100) and typically made in China somewhere. They are almost exclusively used to run emulators for classic games.
The OpenPandora is basically a response that the existing solutions (such as the GP2X Wiz) just aren't that great (which is true, I have a Wiz and I really don't like it). The OpenPandora will almost exclusively be used to run emulators, a smidge of web browsing, and that's about it.