Pickle ( http://www.gp32x.com/board/index.php?showuser=8947 ) is heavily busy, porting a bunch of games to the Pandora.
Linked below is a work of progress video of PrDoom, an engine allowing you to play the famous ego shooter Doom.
Source: http://www.gp32x.com/board/index.php?autocom=blog&blogid=9&showentry=12