ArcWeb Explorer API

You may have not heard that ESRI has released an (beta) API for ArcWeb Explorer. A simple demonstration of this is shown for the location of this year's conference. Feel free to look at the source for this site. The code is very, very short considering the capabilities of the interfaces (seamless pan, nationwide geocoding, orthos, routing, etc.)

There is no cost for public services (which most of the existing mash-up out there are) , and unlike Google, Yahoo, Microsoft and the other's 'free' APIs there are no future advertising plans. For commercial or governmental, the standard 'credit' charges for ArcWeb would apply.