> Probably a silly question...
> I live in fear that my Treo 90 will poop out one of these days (it's
> about 2 yrs old and still working fine, but ya never know...)
Yes indeed. You can either increase the frequency of HotSyncs or get a
backup card for some peace of mind... under GBP 10 (~$19) for the card in
eBay and there is a free backup application.
> As long as I have a recent backup in my hot synch manager, can I simply
> get a new Palm PDA and synch all of my files into the new one?
Yes, but keeping the two PDA's in sync. all the time is another issue.
> REALLY hate to lose my appointments, phone #s, games, text files, etc.
I'd recommend backup. You can make use of the card that you acquire with
your new PDA as well. However new your PDA is, you will never feel 100%