I like what I see so far - the usability of Kayak and its similar aggregators is pretty poor at times, and recently the quality of their results have been dropping precipitously. If MS can step in to fill this void... oh boy.

I think MS has something worthwhile here - they've realized that people are looking for information, not links, and if they can get good data together, they stand a good chance of beating Google at the search engine game, without ever building a traditional search engine.