3d content for PDA's

Blitz3D Forums/Blitz3D Programming/3d content for PDA's

dear all,
Is it possible to develop 3D content for handheld PDA's?
I know that I have seen a version of Quake for a pda, but I don't know if it uses dirextx,
or something else. My program is only 4.5Mb. Is this at all
possible in any way?
Cheers ,Shawnus