Good Great news for those who managed to snag one of Verizon Wireless' unlimited data plans before they took off into the night earlier this week: if you're rocking a 3G smartphone, you can eventually upgrade to an LTE handset, keep the unlimited plan, and have access to a $30 / month 4G tethering plan. That's according to VZW's official Support account on Twitter, and it's decidedly lovely news for those who were concerned that they'd be locked into EV-DO forever. So, anyone had any luck taking Big Red up on its offer?