on the lte network yes you can, on 3g it depends of they put the radio in for it like the htc thunderbolt can. But yes on 4g.
It doesnt sound like it will work that way. From what I have seen only the TBolt and Rezound can do it and it has something to do with the chip-set being Qualcom.
Both my Bionic and Stratosphere are able to do it. No doubt the Nexus can.
incorrect. the bionic can only do it when on 4G. my friend has it and he can't talk and data at the same time when in 3G. the thunderbolt has SVDO iirc.. it does both 3G and 4G on 1 antenna while voice is done completely on another. this allows you to do whatever u want on a phone call while browsing. its really only seen in HTC phones for the most part, and not a lot of them to begin with.
4G only on those devices though (unless you use Wifi)Both my Bionic and Stratosphere are able to do it. No doubt the Nexus can.