Microsoft and AT&T to unveil Windows Phone 7 handsets October 11?

The Wall Street Journal is reporting that, “Microsoft Corp. will unveil a lineup of smartphones using the revamped version of its mobile operating system on Oct. 11,” and that AT&T will begin selling said devices in early November. Microsoft does have an event planned for October 11 — Columbus Day — in New York City (which we will be at), but we’re not sure any significant announcements will be made at the open-house style event. Perhaps there is another, mysterious event planned for that day? We’ll try to dig up some more information and report back.

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