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We've been able to get our hands on an ad that Microsoft will be running for the upcoming features. If you watch the clip below, you'll see some screen shots and use cases for Microsoft's mobile Live search tool.
As you can see, one aim (as with many portal mobile search tools) is to centralize important search data pertaining to the type of search you're performing, with inherent action items to choose from, such as sending text messages with search result details to other friends' mobile devices.