I am using a Treo650, running Palm/Zlauncher with custom visual themes.

Unfortuantely Bell Canada still has ridiculous data rates, even for the old 1X network in contrast to the very fast and fairly new EVDO in Ontario. So I remain somewhat stuck between both worlds with my N800 and the Treo. No modem connectivity for me. So the N800 is really for Wifi Home use and media fun and the Treo650 is for very basic mobile work with calendar and phone and notes etc without any integration or easy sharing of data.

example: $100 a month might get you about 300mbs and then $30 per mb after that when over limit. So forget about full size web pages or larger files through that as a modem.