(for those not familiar, iDEN has data speed of 14.4kbps, while WiDEN has speeds of around 200kbps; though typically 152 IIRC)

I know my old i450 phone supports it, but I've seen nothing about it on BB. I'm not in a WiDEN coverage area right now anyway, but my relatives in the next state over are and I visit them often (and may move back there eventually) so...

not to mention WiDEN is <1 hour away, so it may expand before long...

Wno (sorry; couldn't resist).
The 7510, a rather old BlackBerry, does not support WiDen.