Yeah I also thought it a bit strange that we seem to have found out about this store via secondhand info.  But it looks like Dan added a link to it on the main page at http://www.dbinfosource.com/db.htm with a link to "Check out the David Baerwald store."

I noticed the shirt at the store too.  I saw this shirt (same design) among the merchandise at the show in Houston last year, the second show of the mini-tour.  I seem to remember that not many people reported seeing the shirts on sale at their shows later.  But now it looks like we can get our hands on them from this store.

Ken