httpv://www.youtube.com/watch?v=d7wzffgw9Xc

The new 2Phone case for the iPhone 4 from Rebelsimcard.com features a SIM card slot that enables you to install and use an additional SIM card with your device. Both SIMs will work simultaneously, so there’s no need to switch back and forth – enabling you to make and receive calls on 2 different lines, with two different carriers.

The $250 2Phone case actually looks pretty good, and also features a 800mAH rechargeable battery that provides your iPhone with some extra juice when you need it.

Say goodbye to your iPhone SIM tray. Apple may be looking to get rid of their phones’ reliance upon SIM cards once and for all, instead replacing it with a custom, writeable module that would enable Cupertino to sell iPhones directly to the user without being locked to a specific carrier.