So I tested new apps with the simulators, but there are some things that can't be tested well or things like bluetooth that are much harder test. I tested my app's on a couple of android phones which don't have carrier service and bypassed the activation screen. With andriod phones, everything works, but sms/mms and of course phone calls. Can I do the same with phones blackberry phones, I pick up say off ebay? (wipe and reload the OS as well).
I don't think I need unlock codes, since I'm not going to use them on any cell network. I just want to be able to run my app's on them. I'm looking at a least one with wifi, so I can test networking, but not sure if I'm just wasting money.