Marked with the “DVT-1” badge found on the earlier examples of the iPod Touch discovered in 2010 that sported front and back cameras, this model has 128GB of memory, is running firmware 4.2.1MC14 and is marked model MC550LL which points to a Mac Pro model as well as a permutation of the 4th Gen iPod Touch.
Its thought the perhaps the device could be a prototype or tester that made it into the wild.