Here's some Shareware/Freeware for Psion PDA's
Yahtsiena: A game of yahtzi for the Psion Siena!
For the Psion 5/5mx, PC epoc emulator and probably Psion 7:
Mike D. Rally
(also known as Mike D's downhill Renault Espace challenge)
Feel free to download the self installable sis file here:
Or the seperate files here:
View the Readme file included for more information