Would it be possible to use Tasker or some equivalent to force the phone to only use 2g at certain times? I'm thinking of trying to force 2g when the phone is locked, so it still has data for Google Voice txt's and email syncing, but it's not using 3g to suck the battery. Would it even be worth it, in terms of trying to extend the battery life? I tried with Tasker, but it said the 'Mobile Data 2g/3g' action doesn't work on this phone... I guess for that matter, is it even possible at all to set the data to 2g only??