I have just received one a few weeks ago - I am very happy with it, although I am waiting for a faster Atari 2600 emulator - neither one (GP2600 or VCS32) runs at full speed, and has issues when using frameskipping... (Mostly collision problems, and some graphical issues)

I would love to see a 7800 emulator for this
I have to say, the a800 emulator for it is Awesome! It is so close to full speed it is barely noticable! I actually use it to play the 5200 ports
I also have NesterGP which is also great...
I'm waiting for a MAME port (which I hear should be soon), and hopefully the Atari 2600 emulators will be updated and optimized...
Al: If anyone has specific questions about this excellent little portable gaming unit (or anything I should try) let me know! and Yes, I picked up the one with the FLU (Front Light Unit). I highly suggest getting one!