Can u unlock the iphone 4 for tmobile?

[TRIPLEAAA14]

also how much would a 8 and 16gb cost for the Iphone 3gs?

[vicecaptain]

You can definitely unlock an iPhone 4 locked to T-Mobile. You can unlock an iPhone 4 safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 4 from www.unlocking4u.com/apple-iphone-4/rs6wp9/ at affordable cost. this site is a legit source to rely on accurate unlocking solutions.
Here are the steps for unlocking an iPhone 3GS,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 4 phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 4 to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 4.
6. Disconnect your Apple iPhone 4 and reconnect it after 10 seconds.
7. Your Apple iPhone 4 is now unlocked.

The cost of an iPhone 3GS may vary from each source. You can have a general idea on cost by visiting an Apple store or Ebay.