Jewish content . org actually has stuff for Symbian, Windows CE, Palm OS... heck they even have some iPhone stuff now. Classic.
But no luach for 800w. Since the 800 runs winMo, you'll need something like Haim Tebeka's pocket Luach, which works well (although very glitzy). He's a good man, Haim. Spoke to him a few times when visiting Silicon Valley. Needs to update his app.