Apple has published a news release heralding the 10th Anniversary of the App Store, a milestone that the venerable marketplace will be officially celebrating next Tuesday. As Apple points out, the App Store opened on July 10, 2008, with the release of the iPhone 3G and iPhone Software 2.0. At launch, the App Store included a mere 500 apps, 25 percent of which were available for free, and 90 percent of the commercial apps selling for $9.99 or less.…