iLounge is headed to Cupertino, California to provide live coverage of Apple’s iPhone OS 4 event. The event will be held at Apple’s campus within its Town Hall presentation room, and will begin at 10:00 a.m. Pacific Time, or 1:00 p.m. Eastern Time. Apple is expected to discuss details of its upcoming revisions to the operating system for the iPhone, iPod touch, and iPad, including a new mobile advertising platform. As we have done in the…