On Friday, July 10th, the iTunes App Store turned one year old. Yes, it was only shortly over a year ago that Apple launched the iPhone 3G, an SDK, and the App Store to hold the (currently more than 50,000 apps). Naturally, when you go to iTunes, you get a promotional announcement: Light a candle and cue the music. OK, forgive us for sounding like doting parents, but we’re just so proud–having watched the App Store go from promising newcomer to full-fledged revolutionary. To celebrate its first birthday, we’ve