I read an online review of the Maxx, and naturally the reviewer went on about the battery life. But at the end of the review, in the comments section, a reader wrote: "[P]eople should not confuse what Motorola did with any power management innovation. Its just a larger battery.… Big Deal." I tend to think that might not be true. My Maxx's 3300mA battery is just over twice the capacity of the 1620mA battery in my Thunderbolt, yet I'm getting easily four times the life out of it. I don't know too much about these things, but common sense tells me that in addition to having a larger battery, the Maxx also uses that power more efficiently. Thoughts?