Is this iPhone 4G prototype? Leaked pictures

Now someone has come up with this non Apple like design labeled as the iPhone and we are now talking about a leaked prototype of the iPhone 4G. The claim is that this was found inside an iPhone 3G box at a bar in San Jose. However the finder says that the device failed to boot but still he claims that this has 80GB of memory.

Some more suspicion in my mind as the pictures show FCC ID which just cant be possible on a prototype. And is that a removable back cover? huh

Via

Update: Well this thing is confirmed to be lost Apple prototype

Update: Another 4G prototype shows up in Vietnam and gets torn down

Update: The kid who found this in a bar shows up