Looks like November 7th.

http://blogs.msdn.com/gduthie/archive/2005/06/07/426384.aspx

Not that this changes anything. You could have installed the BETA now for a month or so and have been using it. I haven’t either really.

Web parts are cool though. I am not sure how they will fit into my site. I see them more for a portal into the web or something, but perhaps I could fit them in somewhere at least to try it out.