The GP2X is an open-source, Linux-based handheld game console and media player. Firmware v2.0 was released on April 26, 2006 and is developed by a different company than the authors of Firmwares v1.4 and lower. It fixes numerous issues as well as adding new features.
Darkzero just published an interesting review:
"Everyone has heard of the Nintendo DS and Sony PSP, but less will have heard of the GP2X, the latest portable console to come from Gamepark Holdings (GPH) in Korea. Unlike its mainstream competitors the GP2X is aimed at giving the gamer far more freedom than they could ever expect from the likes of Nintendo and Sony. The community-friendly GP2X uses a Linux-based operating system, providing a framework for you to do activities typically associated with desktop computing, such as playing emulators, view photos, listen to music and watch videos. It currently has very few commercial games but the home-brew scene is going strong."
They gave 9.4 / 10.
Read complete review at Darkzero