When I'm on a 3G data connection, it won't restore data after a call. I think a few times just toggling airplane mode will restore data, but testing tonight every time I called I had to reboot to get data again. Sometimes I get a white 3G symbol, but mostly no data symbol, either way no data after the call. If it ever did this before the recent OTA I never noticed and I think I would have.
Dammit, the phone was working so perfectly before, no issues! If there had not been incessant pestering dialogs to install the update I wouldn't have. At least not yet.