Samsung I7500 :: Better Battery Indicator Idea

I've come up with an idea for a battery status indicator application. On my old Windows Mobile phone I had an application(abcPowerMeter) which could show the current power consumption of the phone. Like this: If we can get this on the Galaxy, then it can be coupled with the existing battery status information to give a pretty good estimate of how long the battery is going to last under current load.Instead of showing a notoriously unreliable and counterintuitive green bar the phone would show something like this in the tray.