One big change from the 2009 ESRI DevSummit is that users will now vote on which presentations they wish to see at the 2010 DevSummit. Go here to pick which ones you think would be valuable to the community. Normally I wouldn’t promote a talk myself (and I’m not giving one this year), but I think “Ruby-fu: Using ArcGIS Server with Rails” by Dave Bouwman is something people should be voting for. Ruby is here to stay and there are many of us working on projects that use Rails at the backend. ESRI of course already has a wonderful API to use with Rails so there is no excuse not to look at a quicker, more robust framework.