It's like CNN on your desktop, beautiful color windows, 1996ish design. Very well executed. A hybrid app. Part client, part content, part server. The most compelling app I've ever seen for a personal computer.
Information stays current.
Weather forecasts scroll thru the window as on CNN, only prettier. Sports, financial, weather, news headlines, presumably lots of other categories. It's immediate like email, but impersonal like the web. If you're interested in just 5 stocks, that's all you see. If you just care about the weather in Boston, Austin and Detroit, that's what you get.