Truly incredible and impressive use of GE.
Now we should be able to toggle off the actual GE data so you can use your breautiful overlays without all the clutter of that satellite and aerial imagery!
I love how the elevation data map is much bigger than the Portland area and then it turns itself off at a certain elevation.
I'd be interested in knowing what kind of a hit your server would take if this were in widespread use, what with all the on the fly calculations. Especially since most people will ignore your warnings and leave multiple layers on. Could be a processor choker fairly quick.
Amazing foresight and implementation. Keep up the good work.