Here are the ones I have downloaded and played with the demo versions:

Velocitek Speedplay
GPS Action Replay
Visual Sail

I also looked at the description on Tack Tracker.

Maybe I missed it, but none of these programs show summary metrics around time tacking/gybing, accerlation after tacking/gybing, mark roundings, etc.

My analysis shows that about 19-20% of the time on the courses I've run is related to turning the boat. Maybe to more experience sailors, this isn't a big deal, but right now, that is where I am focusing my efforts to improve.