You might even call it a Forge 2.0.
The idea is the site will not just attract Appcelerator developers, but anyone in a field related to the RIA tools it offers. That includes the whole AJAX community as well as the emerging mobile Internet development folks.
For instance, once you complete a member profile and contribute to an Appcelerator forum, that profiles follows you. Other users can see at a glance if you're a committer, a contributor, or a newbie, and respond appropriately.
Each member's page can be automatically populated with comments, contributions, and outside resources.
These capabilities could create an interesting new level of competition, as not only vendor-centric but all types of developer sites rush to include new capabilities.
Which the snarks in Atlanta will tell you they can easily write with Appcelerator.