Just set up my Pre 2, moving from a Pre +. So far everything seems to be working, except I cannot get a 3G signal, only EDGE. 3G works fine on the Pre +, but can't seem to get it to work on the Pre 2. One other item I found was I can't pair my Plantronics bluetooth headset either. I dont expect these are related, but might be worth mentioning.
(BTW, it is a US model phone, not EU)