said by compuguybna:My Galaxy s3 does simultaneous voice and data on sprint LTE.
looks like the HTC EVO 4G and HTC Thunderbolt and LG Viper 4G and the Optimus Elite support SV-DO (giving them simultaneous voice and data on CDMA/EVDO) but I think you will see it mostly on phones with separate lte and cdma radios in the short term.