What's so annoying about the transponder system is the unexciting way the information is provided for us.
When MGDavid was racing my car at Zandvoort recently, I was able to follow every lap of the race - live - on
http://www.mylaps.com/live/ShowTrack2.jsp?tid=1
Even now 2 weeks later you can enter your transponder number and get a listing of yourt race laps, graphically or as .csv or .xls files. And that's every lap, not just your fastest.
MGD - that was a bit posey putting your name to the 'ponder. What happens when you're given a different one next time????