The company I work for pretty much uses a subsonic DAL for everything we do.
I recently noticed that the domain was released.
So is subsonic dead?
For all your info, the domain is back up (probably got lost in the flood of Rob's inbox).
I put a lot of time in Jan-Feb 2012 into fixing up all the outstanding bugs in SubSonic 2, including patching, fixing or removing a lot of the failing unit tests (there were quite a few), actioning outstanding pull requests, and generally giving it a good tune up.
I had also added an MS Access provider and an auto enum generator to it.
But SS2 is very much 'mature' now, and I can't see much happening to it apart from bug fixes. That said, now that the help resources are back up, it's still a great and complete package. If there's not much active patching, that may be because it doesn't need any.
SS3 takes the project in a very different direction. I'm happy using it, but as with all these things, I mainly concentrate on what I can do WITH it rather than the tool itself. There is a pretty big backlog of outstanding stuff on SS3, and I'm not up with or even that keen on LINQ, so not sure how I'd go trying to fix anything to do with that.
And Rob has moved on to Massive, his .NET 4 dynamic tool.
UPDATE: The actual official SubSonic site is at: subsonic.wekeroad.com
Subsonicproject.com is a secondary site previously registered by contributor Eric Kemp, fallen to domain sqatters, largely broken. I nearly fell over when Rob told me this.