I spoke with our Verizon rep just last week as I was getting my 8830 set up for tethering for this summer (lots of travel for me this year) and they stated that there will be an upgrade for the 8830 this year (3rd quarter) that will support Rev A. Also, in the immediate sentence after, they looked at me and said "If they tell us 3rd quarter, we expect 4th quarter."
In my testing, the downstream is fairly decent, enough for email and web (estimate about 600-800k) and the upstream is about IDSN speeds (128-256k). I did not benchmark, just used an FTP client to upload and download 5mb files from my site... For me, this is enough for my needs, though with Rev A, I know I will be able to play my WoW...
"Widdershins go when the Moon doth wane, and the werewolf howls by the dread wolfsbane."