No voice and data at the same time on the Verizon iPhone
Why are people so fussed about this?
You either have the phone pressed up against your face or take your call on loudspeaker with the flashing banner at the top of the screen, neither are great ways to browse the internet on a small device whilst consentrating on a conversation.
Why don't you pay the people your on the phone to some more attention.
Then you can get off the phone quicker and carry on browsing.
Failing that, take your calls with a wifi connection too, that way you can chat on the phone and browse whatever it is that's oh-so important.