Google has been crushing it with their Nexus advertising. Kudos to whoever came up with the "playground is open."

However; I'm not sure I think Nexus or the numbering system makes much sense here. Something comparable is the "tesla s," or "tesla x" (which is only slightly less confusing) however in that case, the name of the car has some intrinsic meaning to their early customer base -- both the company and the inventor. Nexus; however poignant the meaning of the word is, does not have a similar emotional attachment.

Didn't they buy Motorola? What happened to the DROID branding. That seemed relevant and powerful and most importantly distinctive from what apple was doing.

Droid Phone.

Droid Mini

Droid Tab.