Thanks for the info, Adam. I use the cruise all the time when I'm in the states. Otherwise, I find myself going 100 MPH when I intend to be going only 70.
Seems that if you were to come out with a DIY kit, you would be the only one on the market. We've been waiting far too long for Werks or Archie to market one. As far as I know, neither of them offer it still.