Sprint's treating the East Coast to a shot of adrenaline-fueled mobile internet today, with Daytona Beach in Florida, Providence in Rhode Island, and Boston (you know the state, right?) all getting the green light for 4G activation. Notably, this takes the number of markets Sprint has now lit up in sexy WiMAX airwaves beyond 50 and ratchets up the states that have at least some coverage up to 21. It's also jolly good news for any residents of those three cities that were lustily eyeing the Epic or EVO 4G but felt they couldn't justify it without an
