Atari800 is an emulator for the 800, 800XL, 130XE and 5200 models of the Atari personal computer.
It can be used on console, FrameBuffer or X11.
See http://atari800.sourceforge.net/ for further informations.
PSPATARI is a port on PSP of the version 2.0.2 (April 08 2006) of Atari800 from Petr Stehlik.
GP2X-Atari is a port on GP2X of the PSP version 1.0.7.
How to use it ? Everything is in the README.txt file.
This is the first version but should be the last version (only if major bugs are found).