If you live in any major metropolitan area, you’re probably familiar with OpenTable. The restaurant reservation service seated its millionth reservation this past October, a year since the iPhone application launched. The company has since branched out to other smartphone platforms and seated another million restaurant-goers – quite a feat for four and a half months.

The news came alongside an earnings report, which showed $19.2 million in revenue for Q4 2009. Those are some damn fine numbers for an internet startup. The company is about more than just reservations, though. It also offers management software to restaurants for a monthly subscription. The company increased its number of participating restaurants by 17% this past year and estimates it has helped generate more than $100 million in sales for the restaurant it serves.