Maybe a rookie question, but here goes - I've seen a lot of posts about where to find an app/widget that allows you to switch between 3G and 2G. My question is: why would I want to do this? Does switching to 2G lessen the amount of data usage (which could be important, considering I'm on AT&T's 200 MB plan)? Or is there some other benefit/reason for doing this? Related: I have the SwitchPro widget, which has a 3G-2G switch available -- does this mean I am able to switch if I want to? Thanks for your replies!