Its been "solved" to some extent by providing a significantly larger (volume) battery in the 9000, a lot to do with its size, I'm guessing. You can't "solve" the fact that a radio transmitting/receiving at data rates 5-10x the speed is going to use more power, that's simple electronic engineering. You can do a number of things to reduce power consumption, but you can do those with or without a 3G radio, and most of them have already likely been done in past BB's. You want 3g? Its going to eat more power - period, amen.