Doug
You need to choose your platform. There are lots of possible options for Palm, far fewer for WinCE at present. For winCE I'd recommend looking
www.syware.com - cheap form development tools that allow data management via PDA then simply synchronise with desktop databases, plus wireless available now. You can manage your whole app using simple request/response VFP tables or files as per Rick's file-based messaging and write a cool WW app to manage it all. You can then deploy faster and cheaper than those struggling with other (bloated) options.
JMHO.
What are you thinking of developing? Interested in collaborating in some iPAQ work?
Regards
JR
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1