The app will be available for a free download in the Xbox Live Marketplace within a couple months. Blair Westlake, corporate vice president of the Media & Entertainment Group at Microsoft, said the companies will continue to expand their partnership. The chatter on Main Street (a.k.a. Google, Yahoo! and other search sites) is always of interest to investors on Wall Street. Thus, each day, TheStreet compiles the stories that are trending on the Web, and highlights the news that could make stocks move.-- Written by Brittany Umar.