I have to tell you, I am getting hella better battery life out of the leaked update versus 1.5 on the Hero. I am sitting at 1.5 days since last charged, and am at 50% battery. On the old firmware, I am possibly close to dead at this point. I wonder if the native support in 2.1 for the Sprint network is making that large a difference, or if wiping the phone somehow purged an energy guzzler from my machine. Whatever it is, I wondered if anyone else who updated is noticing a similar gain in battery longevity.