I agree with Red about iGuidance's ****ty way of finding street names and such. One time I was looking for a street in Maryland (forgot the name). IG couldn't find it. I had to map it on Yahoo Maps and routed by Lat and Lon. Once I got there, IG was able to display the street name I was looking for just fine. It has the street in its database but couldn't find it. How ****ed up is that?
Anyway, I still prefer IG over S&T because of its more touchscreen friendly interface. And with iGMon, it's a clear winner for me.