Those of us who watch hours of the Food Network know that Umami is one of the five basic flavors. iPad users might be more familiar with the word from the Umami TV companion iPad app (free), which today received an update that adds social aspects for sharing your TV-watching experience. The two new features, which should come in handy this weekend while watching the Oscars, are FreezeFrame and Dishboard. FreezeFrame lets you easily take snapsh