At the moment, I have TPS and water temp on top, and MPG and Open/closed loop on the bottom. I quite often switch the water temp to other gauges though. The reason I use LP all the time is to make sure that the ECU is looking at the sensors and not running off of it's pre-programmed map. This came in handy when I was playing with my EFIE and I would add to much voltage. It can also show when an O2 sensor is getting weak and isn't quite bad enough to trip the CEL. Most of the time though, I'm watching the current trip since I do almost 100% P&G around home on the back roads.
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.
This is a commonly requested addition and one I personally want to see. Right now, all the programming effort is assigned to the interface accessory. When it gets done, I expect some enhancements for the ScanGaugeII will take the priority. Other ScanGaugeIIs will be upgradeable to the enhanced capabilities.