In the fast moving world of smartphones, giant HD displays just aren't enough anymore. The new hot commodity in the land of mobile is "HD Voice." Sure, the technology isn't exactly brand new, but using it over post-3G high speed networks is. The selling point here is high quality noise cancellation, which allows a phone's user to be heard clearly in the noisiest of environments. The latest device to hop on the bandwagon is Sony's Xperia T. When describing this feature, the herculean consumer electronics maker got downright emotional saying, "you feel closer to the person you are talking to." While we're not too sure about that, HD Voice did impress during our ears-on session. The major caveat here is that this feature requires that both parties have HD Voice capable handsets. So, until this concept becomes more mainstream, Xperia T owners' phone calls are likely to be close, but no cigar.