[Scrappy xyz]

Wondering how this works if I turn it off? if I want to use web, do I have to manually turn it back on? Can some1 please explain this to me?

Since Froyo, my gf & my evos can only get about 8hrs with light moderate use. Trying everything, but nothing seems to work. At home, connected to wifi, i can get 20+ hrs, so Im guessing its the signals, even though I have FULL bars @ work & im in the middle of NYC. I would assume the signal is steady. (although @ my desk, if I check the web on my phone it is slow)
any help is appreciated!
thx