BGR has nabbed a bunch of photos of a purported white T-Mobile USA iPhone 4 test unit. The phone looks virtually identical to the current iPhone 4 and runs a version of iOS 4. You can tell that it’s a test unit by the several field-testing settings and applications on the device. The device is obviously a prototype unit, not a production model, and that is evidenced by the prototype markings on the back of the device. There is no information on a release time frame or if Apple is going to release this thing to customers at all, but be sure to check out all 26 photos in the gallery.

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