I was looking at the revised "coming soon" and 2015 supercharging maps at the Tesla web site. It seems they would place one in the Quad Cities (Rock Island/Moline/E Moline/Davenport/Bettendorf) area, one in Des Moines, and one in Omaha. The Omaha<->Des Moines link seems reasonable at about 139 miles. But the link between Des Moines and the QC seems a little long for a S60 at 165-175 miles - depending on where they put it. EV Trip Planner calculates the Moline->Des Moines run at 54 kw and 193 RM. Is this reasonable for someone who is considering a S60 and needs to make this run on occasion?