Apologies if this has been clarified elsewhere. A quick search I did yielded nothing. I had an iPhone 2g running 3.1 for the past year or so. I just switched to a 3GS on iOS4. I notice that the 3GS's battery meter seems to be more accurate in that it constantly and consistently depletes. On the other hand, the 2G would require about 1.5 to 2 hours of "usage" before it would show any depletion in the battery icon. Is this difference something that other people have noticed as well? Is it an effect of iOS4? Thanks!