Apple iPhone 3G

do yall think its a lie that this phone will not be able to be unlocked being as this phone takes a sim card cause wouldnt that also mean if i was to get this phone and it gets activated and i decide nah i dont want it and decide to give it to somebody else they wouldnt be able to just slide there sim card in and use it because it was activated on my account? cause that would pretty much be the same as using it then stopping and unlocking it either way its not on the account it was originally activated for so whats the difference really in just having it activated but still unlocking it and just sliding in another sim im pretty sure some iphones before were already in use when unlocked

2nd question if i want to add a second line...
(continues)