Just to provide reassurance WRT LogTen Mobile, I managed to get an unlocked 3G from NZ (seems to be one of the few places on our network you can do this - something to do with the local NZ consumer protection laws it is rumoured) and the synchronisation works really well, part of the secret is not to synch too many flights, after all the LTM is not supposed to be stand alone but rather a method of updating the master database on LTP.
TOD