I was wondering what programs or downloads you have found usefull for your PDA's? I keep my genealogy organized on my PDA and when I am on the road I have all my information nearby to look at. It is also helpful in looking up birthdays.

I've downloaded Ultrasoft Money which syncs my MS Money (personal finances) with my palm so that I can track spending. This has been helpful for me but it does cost a bit of $$