Most of the time i work with either ArcGIS API for FLex or Javascript. Its part of my work to create graphics layer from either xml or json. Recently i saw that ESRI added a csvLayer in their API. In my opinion it will be greate if we extend that ability and add ability to create layer from Standard JSON or Standard XML. This will save people lot of work who are creating these graphics layer from dynamic xmls/json regardless of which API they are using.