Brando just released the same as TurboSIM, but now for the Apple iPhone 3G. It's a proxy SIM card, it makes the mobile phone believe that it's in one network, while using the other, and it apparently works with the iPhone 3G.

If you remember well, the iPhone Dev Team had advised not to use these, but to wait for a software unlock. Their iPhone Pwnage Tool is taking a bit long to come, so if you can't wait to have the iPhone 3G in your country, you might consider this option.

The Brando iPhone 3G SIM unlocking card is available online at US$20.5. It works with many other mobile phones and brands, but the highlight is the iPhone 3G.

Features:

Designed to unlock operator/SIM card locked Apple iPhone 3G phones

Simply slide the attachment under your "normal" SIM card (the one that you wish to use)

Ultra-thin film-like design minimizes the need to cut and trim SIM cards

[via Register Hardware via Unwired View]