The model by Gunther and friends will be a freeware model. He hasn’t let us know yet when it will be ready:-)
Our Eaglesoft Development Group model will be a commercial offering with price and release yet to be determined:-)
More info on the Eaglesoft model may be found here http://www.eaglesoftdg.com/forum/viewtopic.php?t=33
Note: Registration and login required in our forum in order to see the SR20 and SR22 forums:-)