Robert Schwentker of App a thoner is putting together a Chatter Appathon day on Saturday May 8th, from 9am to 6pm in Mountain View at the Hacker Dojo.

This event will include a variety of offerings, such as expert talks on developing on the Force.com platform, and in particular developing with Chatter. Members of the salesforce.com Chatter team and SFDC partners will be in attendance to answer any questions you may have.

Beginners and Expert developers alike are welcome! Food will be provided all day long at the Hacker Dojo where Robert and his organization are graciously hosting this developer get-together. Come and network with your fellow devs, learn something new, or just hang out and take in the atmosphere. And all this is, of course, free to attend.

Details and registration here. Hope to see you there!