PocketPC - If you have Cookie Home Tab (+Editor) and want to preserve some battery power by turning off the weather animation on the home screen, the solution is very simple although maybe not so obvious.
In Cookie Home Tab add a new shortcut to a Switch and then select Weather On/Off. After you do that, there will be a new switch icon that can be used to turn off the weather animation.
I see the animation as annoying. If its raining where I am already, I don’t need my phone to be wet. :)