Originally Posted by
jon_slider
I agree with Olethros, that a phone you buy today cannot be unlocked, so I dont know why you would want to buy one, but, to answer your question, the key ideas to buy a phone are
1. you can buy a phone for a no commitment price, which is $599 plus tax, for 16gig 3gs, at an apple store, and walk away with a phone that only works on ATTUsa, but has not been activated, so wont even work as an iTouch.
2. you can buy on a contract, which will cost you US $199, and it will activate the phone, which is lost if you restore firmware for any reason. So if you take the phone to Venezuela, it wont work with any SIM from local phone carriers there, it will be locked to ATTUsa, but it will work as an iTouch.
Once Activated, it can be jailbroken but not unlocked if the 4th and 5th digits of the serial number of the phone are 39 or lower (only 36 or lower can be unlocked)
If you cancel the contract within 30 days, you end up paying a number of costs, primarily made up of, 1. $170 early termination fee, 2. One month of service $80, plus your original cost of 199, and the original $36 activation fee, total about $485, plus tax..
3, You can buy an unlocked 3G or 3Gs iPhone on ebay for about $500, or you can buy a factory unlocked one for about $800.
A factory unlocked iPhone can have the firmware updated at any time without fear of losing the unlock.
An iPhone unlocked with software such as Ultrasnow becomes locked if the firmware is updated, unless you use custom firmware made with Pawnage Tool. Pawnage tool can also build firmware bundles that will hacktivate your phone, but only if it is a week 36 or earlier model 3g or 3GS.
You can also buy a 2G iPhone on ebay, and these Can always be unlocked, no matter what firmware you update to. These 2G models did not come with GPS, so I would not buy one.
In conclusion, the best options I am aware of today for buying an unlocked iPhone is ebay, and possibly craigslist..
Once the week 40 serial number iPhones arrive, they cannot be jailbroken, nor unlocked, though you will still be able to buy Factory Unlocked one$