[jshevek]

Few people may _need_ for a phone to stay on while changing the battery, but is a huge plus. I spent over a year on a phone that could hot swap a battery if you do the swap smoothly, and avoiding the need for a reboot was definite pleasure.

[XorNot]

My last iPaQ could do this trick. There was a button cell NiMH next to the LiIon cell to keep it going.