I had been following this guide to get areas with multiple projects setup: http://msdn.microsoft.com/en-us/library/ee307987(VS.100).aspx
I was stumbling on the step where you modify the .csproj files to enable the AfterBuild configuration. My googling led me to this post from Steve Mosely: http://avingtonsolutions.com/blog/post/2010/04/03/JQuery-AspNet-MVC-2-Multi-Project-Areas-and-Other-News-Minutia.aspx
So far the only hang up I had was that I had set up my solution to incorporate multi project areas which was supported in the MVC 2 preview releases of Areas. However, when the RTM came out it was no longer supported. I searched and searched for solutions to my dilemma, but the only thing I could find was post by Jonathon who basically had the same experience I had, and a reference to an obscure message on a message board saying (by what appeared to be some one from the ASP Team) that it was not supported. To date, I haven't found any more formal post or article saying that was not the case.
Is this true? Did this feature get removed from 2010 MVC2? I haven't been able to find a definite answer.