Switched from TMO to VZ for the Galaxy Nexus through Amazon Wireless.
Currently on my 3rd replacement from Amazon. All 3 devices have had the data/voice drop issue to varying degrees. 1st and 3rd were/are worse than my 2nd.
My country of origin and HW versions were (all new from Amazon):
1 - China, rev 9 (dropped on every call, and lost signal every 2-10min)
2 - China, rev 10 (dropped few calls, would lose all signal at random)
3 - Korea, rev 10 ( dropped on many calls, loses all signal at random, possible cackle issue)
I have NetDrop Capture installed from the Play store and can see the modems reboot in the dmesg log. Occurs with all the radios. 4.0.2, 3, 4, latest 4.
Amazon is now giving me a choice to either:
a) Try a 4th GN. (Ugh, copying data is getting old)
b) Exchange for another VZ phone. (Nothing grabs my attention like the GN)
c) Port back to TMO and they'll try to get me out of my VZ contract. (I'd go back to the NS and later buy the unlocked GN)
They told me to think on it and call back, and even suggested that if I do end up asking for a 4th GN, to have them agree and note that I would still want to have the option to port back to TMO or exchange.