I've just published some initial tutorials and information regarding widget creation in the newly release Telligent Evolution Platform.

Fortunately, if you're familiar with creating widgets in Community Server 2008/2008.5, you already have a basic understanding of widget support in Telligent Evolution.  The same base interface and classes are used in Telligent Evolution, but they have been extended to add more configuration and implementation options.

I'm hoping to post more information soon.  Let me know what you'd like to know about in the comments.