I must apologize.  I was under the impression that the community drop (Visual Studio 2005 Technical Preview March 2004) distributed at MDC was publicly available on the web; however, it turns out this is not accurate, per Mark Cliggett's post.  The community drop is available to MSDN Universal subscribers though.

I will follow-up with folks internally here, and report back with what I find out, as soon as I find out.