Charnold has released a new and awesome looking version of his PSP - Dungeons Game, the game iself looks like a throwback to Wolf3D. Check out the screenshot:
Heres what the author says:
I modified my dungeons-engine a bit, so it can render bigger levels now and not only small mazes (level 4 is a simple remake of Wolfenstein 3D's first level). I included some enemies, so now in this version you can really do something :-)