EV-DO Rev. A (Simultaneous voice and data??? Or no?)
 

Somewhere online I remember some poster saying that Rev. A would allow for simultaneous voice and data like HSDPA. Now I checked Qualcomm's site, evdoinfo.com, evdoforums.com, sprintusers.com, a bunch of other places, and I can't find a straight answer.

Does Rev. A support simultaneous voice and data...or not?

And if so, can somebody point me in the direction of info supporting this?

Yes, it supports voice and data:

Read Here

and Here

and here

and Here too...