Where did you get this info?

Guess the Vogue not having Rev. A either at launch for winter was a sign the Mogul also wasn't getting it this year.

The higher upload speed and use of QoS would theoretically allow simultaneous voice and data since the voice channel would be IP based instead. But there's no evidence that I know of that says Sprint would implement this feature.

You can read the technical explanation of Rev A here:
http://www.airvana.com/technology/te...evdo_rev_a.htm

And after we get voice/data simultaneously, even more clueless users will complain about poor battery life!