I just talked to a sales rep at T-Mobile about the TREO 650 and he said they have no immediate plans of offering it. He said I could buy one unlocked off the Internet and call them to subscribe it. I did some looking on EBAY and notice a pretty big price difference between locked and unlocked phones. Are there certain phones that can't be unlocked? I think I saw some stuff on this site last week that said the unocking process is not that difficult, I just want to make sure the phone I buy will be unlockable.

Thanks.