So far, I've been trying out software for my ipaq 4350 and having lots of fun. I've settled on a basic list, comprising:

MemMaid
HandyMenu
HandySwitcher
Sudoku Master (pricey, but well worth it)
Worldmate
Adobe Reader
MS Reader
TreecheckList
PocketRSS

I wanted to make sure there were no conflicts etc before upgrading the ROM and now I'm going to go ahead and do it.

It seems that this upgrade is not without some risk (from what I've read anyway) and I don't want to be in the position where I screw everything up through carelessness. This ppc being second hand, there's no way I can run to HP and get them to fix it if I break it.

I've got most of my programs installed on the memory card, but a thought occurred to me - if any of those progams have related registry entries, they will get deleted won't they? Should I therefore reinstall everything from scratch?

Are there any other tips you guys can give me so that I don't mess up?

All input gratefully accepted! :)