My 1.1.1 unlocked iPhone (AnySim) synchronisation suddenly stalls when it tries to sync with my 10.5 Mac. It stalls on syncing contacts it tells me... I tried to let it run for over an hour, also checked the "replace information on this iPhone' box in Itunes.... no success....
When I uncheck contacts syncing all together, it stalls at calenders.
When I uncheck everything under the Info tab it works fine (syncs music, movies, pictures and podcasts).