Can I just insert existing T-Mobile SIM card into an unlocked/Jailbroken iPhone 2G?

[.macstiled]

Will it work?

Thank you.

[Nine9si]

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Yes, if it's unlocked it should work by just inserting your sim card

[.macstiled]

Thank you, Nine9si.

Aside from applications, will iTunes then allow me to sync music, videos, etc., or will it still ask to set up the iPhone?

[Nine9si]

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You can sync anything you would with a normal iPhone on AT&T.

[.macstiled]

Thanks again :)

[.macstiled]

Success... I think :)

SIM card worked, seemed to have phone service, but didn't recognize the data plan that's on the T-Mobile account, and contacts were missing (maybe this intentional?). Also, neither the iPhone or iTunes displayed the phone number. Do I need to do something special for that?