Now, a U2 blog originating in Mexico published a list of 2010 tour dates which includes St. Louis on July 10, and a commenter claimed the list originated from Interference, the U2 fan community. (Hey, those Spanish classes I took paid off.) A little Google-poking found the atU2blog posting about an alleged show in Michigan on July 8 of the same year -- and a two-day drive is completely doable to Missouri from there. (Their method of finding the date -- StubHub.com and Eventful.com -- yields no St. Louis evidence, however.) U2 has announced some 2010 tour dates, but not a new American leg -- and this year's shows have been in large outdoor stadiums, so it's anybody's guess what's going to happen.
Stay tuned.