Picodrive is a Megadrive/Genesis emulator for the GP2x by notaz.
Shahzad Sahaib's Articles
ZX-81, a well known author of emulator ports on the PSP, has recieved a GP2x. It seems he is willing to develop on GP2x too, which will be a great profit for all GP2x Users!
FlowFlowMania is a remake of the classical puzzle game Pipe Mania on Linux with GP2X compliance.
zodttd has picked up the work on PSX4GP2x again, which is a PSX emulator for the GP2x.
This is a little app for the PSP which gives you the possibility to doze off with your favourite chill-out music playing silently and wake up with some loud and hard music (or even with the beep.wake.mp3 in the package) with volume maxed at a predefined time.
DS81 is a Sinclair ZX81 emulator for the Nintendo DS.
Currently you can play against other players, collide and destroy the level graphics, and shoot down other planes.
ZXDS is an upcoming emulator of Sinclair ZX Spectrum for Nintendo DS, written by Patrik Rak. It is still in a very early stage of development, but it already has some noteworthy features, like emulation of Spectrum 128k or TAP/TZX support.
pmcc has started to work on a port of Arkanoid 2 to the Nintendo DS based upon the Arcade version. More information at his blog.
zodttd has picked up the work on PSX4GP2x again, which is a PSX emulator for the GP2x.