I have the 700P with sprint. Always liked the Treo but I have never tried a blackberry. Audio quality is good but the Treo lacks volume in speaker mode. If the Treo had higher volume I would think its perfect.
I sync via a contact manager and never have any issues with the phone itself or the sync/contact/email features. I can also convert document files and videos/jpgs now with a palm based phone with the 700p. The 650 didnt have that capability.
