Just got my Evo last Monday with 3.30.651.3. Received a message for an OTA today.
Quickly pressed CANCEL based on some of the responses to this thread.
The bloat is in 3.70.xxx.x That's the one with Swype, Kindle, Nova, Blockbuster, etc. The 3.30.651.3 is for a camera and Qik update for the newer hardware Evo's like yours. That one won't hurt you...or annoy you.