I'd like to second the kudos for turbocc and catymag. I've been using my conversion for about a week now and have no desire to go back.

I had to reinstall the lifetime map update to restore some of the voice commands. Found that you can use the speed limit adjustment to speed up simulations, but it changes the limit on that segment for normal driving also. So not a good idea to use it that way. I wonder if those speed limit changes are sent to Garmin along with changes to POI's ?