With the iPhone 3.0 OS officially dropping today (though some of us have had ours for a week and have since hacked it for tethering!), MLB.com is pulling all punches with its new iPhone App, At Bat. While the app itself isn’t new, the 3.0 update will give owners the chance to stream live baseball games at no additional cost. The first game to be streamed will be tomorrows Sox vs Cubs matchup at 2:20pm. For $10, you seriously can’t beat this deal.