I doubt you will ever see data and voice simultaneously on any CDMA carrier.
They aren't going to be doing anything new beyond Rev A or make any big network wide changes. All of their resources are going to be devoted to improving existing coverage, maintaining speed, and preparing for LTE deployment.
When you get your first VZW LTE based device, then you'll probably have data and voice together!
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Z10 and PlayBook <- 9650<- 9630 <- 8330 <- 8130 <- 8830 <- 8703e <- 7130e <- 7250
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