"Nothing says fun like a speech demo." Those are the words of Microsoft's CTSO Eric Rudder, not ours -- although we do have to agree. As you'll see for yourself in the video after the break, Microsoft held a private event for its employees a few weeks ago showcasing some of the advancements it's achieved with Bing's voice search for Windows Phone. Thanks to the work of MS' Research arm and the folks at Advanced Technology Group, v