The EVO fan blog Good and EVO is reporting that simultaneous voice calling and 3G data (SV-DO) is working on Sprint's HTC EVO 4G LTE. Some of you may be aware that unlike GSM carriers (e.g. AT&T), CDMA carriers (e.g. Sprint) are unable to serve voice and data over 3G simultaneously. So if you were on a CDMA device talking to someone, it would be impossible for you to connect to the internet.