> Not really. I think the better term is locked out of the ancient CDMA networks of Verizon. Nexus series is GSM, which is used globally, except for Verizon in the U.S.
Don't overstate the rarity of CDMA or the ubiquity of GSM. Yes, GSM is effectively the global standard, but CDMA is way more popular than you say.
Examples of other CDMA networks include China Telecom (40+ million subscribers) and au by KDDI in Japan (20 million subscribers).
A full(ish?) list is available on Wikipedia:
http://en.wikipedia.org/wiki/List_of_CDMA2000_networks
Many of those are specialty providers, legacy networks, etc., but a fair number are regular old cell phone providers.