Earlier this week, Microsoft filed what appeared to be a patent application for a smart phone interface, causing many a blog to begin speculating that maybe it was for a "Zune phone" (for better or for worse)--something that's been talked about for some time now. The images in the application, showing a tiled graphical interface, definitely look somewhat iPhone-ish, and plenty of buzz arose that perhaps Microsoft was trying to develop an "iPhone killer."

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