Tried this method last night to root my phone, I was hesitant at first but i was like "what the hell". Took me about an hour (because I was also fixing my laptop), but got it done. Phone is rooted and already deleted those ugly sprint apps.
There is not way to root this new OTA, you will have to downgrade to 2.3.3 BUT, the phone won't even let you do that, i least not with me. Looks like we are stuck with this until a root is found :-(
Lesson learn, do not update future OTAs lol