is wifi like blue tooth does it drain the battery in the phones? just a thought, cause many new phones are coming out with wifi and I know that the blue tooth does drain the battery a bit more than when it is off. But then again, it does make the connection much faster than edge. I was thinking of getting the curve, but now the 8820 has wifi and the curve does not, and I think that is why black berry's do not use 3g and they use edge to save battery, anyone have any Ideas?