Once you've got your new iPhone, you'll need to connect to the latest version of iTunes to activate it. And which will ask for activation with original simcard. But when you have not the original SIM, what to do?
1. To activate put the card into the iPhone.
2. Data cable should be connected to the computer.
3....
US$ 7.25
Rebel Sim Unlock Card for iPhone 3G v2.2
Rebel Simcard configured to mode 1 by default for usage with Apple iPhone 3G v2.2...
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Super X-SIM IP-1.33 Unlock iPhone 3G firmware v2.2
1. Support iPhone 3G firmware 2.00, v2.01, v2.02, v2.1, v2.2
2. Support iPhone 3G firmware v2.2...