Can anyone recommend an app with a widget that shows 3G signal strength and current net traffic? Our signal bars seem to be a moving average more than anything, not helpful. I work in a building thats sort of a dead zone, actually kind of... undead. -90dBm strength. I'm trying various things to improve my 3G strength short of buying an external antenna, but I need to watch my download speed and signal in realtime. Thoughts?