iPhone 2.0 battery life

My battery life completely sucks now. I have turned off push, and running the phone the same way I did before, which is to check for mail every hour, wifi on, bluetooth off. wtf? I am in the red well before the end of the day, where as the day before the update I was running 2-3 days without charging, under normal usage of reading my RSS feeds in front of the tube or on the porcelain thinking chair. Phone also seems to run WAY hotter. It seems to be a bit hit or miss with people. Most state some diminished battery life, some state none, and a few like me seem to have virtually no battery life. Weird.