The Anthelion: Galactic Alliance 3D space shooter still surges ahead of much of the PDA game competition. Simply put, pay your development time dues on these games for PDA devices, folks. It may just result in a 3D game engine that runs as well as this one.
Niggling issues apart, Anthelion by PDAMilll has won lots of praise online. If you want to see what I mean, click here for more details on this excellent space shooter with some screenshots that I've just posted.
Anthelion costs $19.99 to purchase from PocketGear.com. For the more curious, I strongly suggest downloading the trial from the site here for a test run.
Graphic and audio settings make this game backward compatible with those of us with slightly older 200Mhz Pocket PC devices. My 400Mhz iPaq handled this game just fine.