Extend map topology to the Web APIs/Services/Viewers

[LukePhilips1]

As a reference: http://blogs.esri.com/esri/arcgis/2012/09/17/map-topology/
From the comments, be able to access topology rules from the web APIs.

[EricGordon]

Map topology employed in Web APIs and Viewers would enhance the editing functionality immensely.

[LukePhilips1]

Looks like there may be an open source contender: https://github.com/mbostock/topojson