There are 3 versions out there of the same product
Nexus 7 i/o - white backing and black bezel trim. These were given out by Google to devs and special people.
Nexus 7 - black backing and silver bezel trim. Intended for Google play store pre orders
Nexus 7 - dark brown backing and silver bezel trim. This is the official retail release
Apparently some pre order black units had poor build quality.
Sent from my Nexus 7 using XDA Premium HD app
Nexus 7 i/o - white backing and black bezel trim. These were given out by Google to devs and special people.
Nexus 7 - black backing and silver bezel trim. Intended for Google play store pre orders
Nexus 7 - dark brown backing and silver bezel trim. This is the official retail release
Apparently some pre order black units had poor build quality.
Sent from my Nexus 7 using XDA Premium HD app