If you never visit this site’s forum, you are missing out on the action. Member iamtawon’s posts in particular are worth a visit. Tawon has been a big help with testing the features of the Sun Tracking / Heliostat Program. The above video shows his heliostat array in action. It took a bit of tweaking, but you can see that he has managed to get the tracking working really well.
Here’s another quick video of a close up of the heliostats.
He has recently started a blog to help document his work too. It’s still a work in progress, so check back from time to time for more. http://sunsynchronous.blogspot.com/