Is it worth getting?
I ended up playing with each of them a bit, but they never grabbed me. I think I'd love to have a little gadget that allows me to play NES, Atari 2600, Intellivision, Colecovision and such era games wherever I go. But I found that I was having to fuss and fudge with it so much that I never really got around to much gaming.
Has the gaming community around these devices matured enough to make it worth diving back in? I'm a bit of a Linux hacker and am not too shy about setting up emulators (I have a MAME cabinet). So a learning curve isn't too much of a hurdle.
I think that I get overly involved in setup issues with the GP2X and don't end up spending much time playing the games. If it had something akin to apple's app store, I think it would have a better time getting users. It was still a bit of a wild-west kind of environment when I was using the older GP2Xs.