That brings me to OpenLayers and ArcGIS Server. The RESTful API gives easy access to ESRI ArcGIS Server services to OpenLayers and other APIs, yet there is no way to collaborate such development on the ESRI community pages. I’d like to see ESRI adopt OpenLayers as readily as they have adopted Flex, Google and Microsoft APIs so that ESRI developers can deliver the applications their clients demand. There is some really good code floating around there for using ArcGIS Server REST API with OpenLayers, just not where it probably belongs to get ESRI developers started. For now just head on over to the OpenLayers email list or IRC and get involved.