You can turn off data on your own (through the phone's settings), or you can request your carrier to block data usage.
Only if you buy an LTE version. Wifi only versions do not require a data plan.
Since the question doesn't specify what Nexus the person is comparing it to the Nexus S, here's the order of Nexus phones (and by manufacturer) to date: -HTC Nexus One -Samsung Nexus S -Samsung Galaxy Nexus -LG Nexus 4 -LG Nexus 5
Since the Nexus S, Google brought out the Galaxy Nexus, Nexus 4, and Nexus 5.
If you can connect your Nexus 7 to a wifi hotspot, then the data would be free.
There are only a few differences between a Nexus S and a Nexus S 4G. Nexus S is T-Mobile phone, while the Nexus S 4G is a product of Sprint's Samsung. The only other major difference is that the 4G version offers Google Voice.
Nexus S was created on 2010-12-16.
It never did, but it did get the Galaxy Nexus, which had a number of improvements over the Nexus S.
The Nexus S 4G is a CDMA phone and the Nexus S is a GSM Phone. This is the basic difference between these two phones. Most of the remaining configurations are same.
The Google Nexus S is from T-Mobile and Sprint.
Yes all htc phones require the data plane
The Nexus S is going for about $450. $200 with a two year contract.
The Nexus S came in both CDMA and GSM variants.