Radio Shack Offering iPhone 3GS (and other) Trade-Ins for iPhone 4

As one of the launch retailers for the iPhone 4, Radio Shack is offering special trade-in deals for existing phones that can be applied to the new iPhone 4.

At a Brooklyn-area RadioShack, a sales representative named Shaquana told eWEEK that only some electronics trade-ins will be allowed in-store, and others will have to be arranged online. Devices that one can safely trade-in at the store, she said, include phones and game consoles, chargers, old cameras and camcorders.

Radio Shack's Twitter account has been filling in some blanks on the policy. Edible Apple has been tracking the tweets which revealed that the iPhone 3GS can be traded in for a $200 credit to the new iPhone:

The trade in value on an iPhone 3GS is $200, so if you're currently toting around last year's iPhone model and are eligible for an AT&T upgrade any time in 2010, you can pick up the new iPhone 4 for free. While trade-ins can ordinarily be done online, Radio Shack is advising users via its Twitter account that if the iPhone 4 is on your radar, your best bet is to show up in-store.

The iPhone 4 pre orders begin on Tuesday with the final U.S. launch taking place on June 24th.

(Note, you may do better than $200 selling your iPhone 3GS on your own, though with potentially more hassle)