Hi Michael, The patch that will allow ArcMap 10.0 to open web maps in the latest format is still being tested and I'll ping this thread when it is announced. It will be a few weeks still before this happens. Sorry about the delay. I should have also mentioned in my post above that while this patch will let you open the new web map format inside ArcMap, it doesn't include support for note features (features and annotation drawn on the map using the editable layers functionality) so with the patch installed if you open a web map containing note features, they won't appear in ArcMap. We are working on adding this functionality so that note features get automatically converted into geodatabase feature layers when you open a web map in ArcMap but this is planned for the 10.1 release which we will be talking about more around the time of the User Conference. Actually for the workflow you are interested in, where you enable a user to create and edit features via the web which you then collect and bring into your geodatabase, our recommended workflow would be to use ArcGIS Server to create a map service with feature access capability turned on (i.e. create a feature service). You can then create a web map in ArcGIS Online that includes your feature service that people can access either using ArcGIS Explorer Online or ArcGIS.com's map viewer so they can create and edit features in your service. Here's a video of a session from the 2010 User Conference that is intro and overview of using feature services in web maps. It takes you through how to serve up a feature service, how users work with it out of the box in a web map to edit your database (no development required!!!!) and how it all works. http://video.esri.com/watch/156/web-editing-in-arcgis-server-10 Is this patch ready yet ? I was at the UC and have created a map at ARCGIS online and want to open it in DT back at the office, but I get the same error message. As its not my server I cannot edit any of the services so I am stuck
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