In the December Beartracks, Greg Charest in his article about Phase 1 testing mentioned the web application flysto.net. Most EFIS have data logging capabilities and this application allows you to analyze all your flight and aircraft data. I had been using an app called flightdata.com and was fairly happy with it. It's drawback to me was that it didn't show volts and amps, and I was having trouble getting my voltage regulators set where I wanted them. Yesterday I opened flysto and was blown away with the presentation and amount of information available. You can even watch a video of your flight, must use something like google earth to do that. You can view a 3-d image of your flight track. It is a very powerful recording and analysis tool and a huge help in your flight testing.