Arizona is experiencing an outage. I have had a problem all week and now it is completely down. I called Verizon and it is a definite issue in Cave Creek. So if you are in AZ, it isn't your phone, it is a Verizon network issue.
Switching to rev. A fixed it for me. I can still use voice and data simultaneously and get the same results on speedtest using rev. A. I honestly don't know the difference between rev. A and eHRPD other than eHRPD is newer. Verizon will push a PRL update soon ish. In the mean time I tried switching back to eHRPD today and it's still out for me.
This is not a geographic issue, my dad has a thunderbolt and he's had data the whole time.
If you were talking to me: rev. A works beautifully. Same performance, same coverage, same simultaneous voice and data. I like the idea of being on the newer network but honestly if I got a bad PRL update I'm fine on this one.
My dad is still on eHRPD and he has data. After my switch to rev. A I've had it too. Considering I didn't see a million puerile come through the store I work at this afternoon I'm going to assume this isn't a company wide outrage. Probably just some buggy tower update pushed to some people.