Telligent have released the Beta 1 for Community Server 2007 and you can find more details here. I have the beta running locally on my machine and on the surface I don’t see many changes, but I have not had too much time to dig into it. The only notable change is how the themes are handled – making it very easy. E.g. changing the image on the paperclip theme is a piece of cake. But given a version jump from v2.1 to v3.0 there should be more in this.