Anyone has developed an application using wireless tecnology such as
bluetooth or i-fi to load data in a flash application for PDA. Any examples
or websites with tutorials would be very helpful.

I did a prototype before utilising sony clie nx80 with wi-fi card on flash 5
player, backed by coldfusion engine. well its not much different with
developing application for pc. it just has some limitation on motion, font and
limited actionscript command depending on which version of flash player u
intended the apps to run on. As long as the pda has tcpip connectivity, the app
would work like charm. visit http://www.flashdevices.net for some useful info.
Have fun!