Have to disagree about the wonderfulness of the Skymap - there was one of these in an RV6 I part-owned for a couple of years.
3 things - incredibly slow screen updates (up to 5 secs to zoom in/out, which is a long time at 150 knots)
the planned route is a thick purple line, and controlled airspace is... a thick purple line
too many button presses to do almost anything, in particular re-establish flight plan after turning the unit off (eg to re-fuel)
What I DID like though was the GPS generated position reference - so with no effort I could tell ATC "5 miles south of ..."
I agree, if Bendix had updated it, it would be much better, and somewhat worth the inflated price.