We've known Microsoft will detail its plans for Windows 10 on mobile here at MWC, but in the lead-up to its event it's accidentally let slip that two new Windows Phones are coming as well. An empty article went live on its blog with the headline "Microsoft Lumia 640 and Lumia 640 XL: keeping you prepared for anything," and was swiftly removed, but not before The Verge spotted the mistake. From the model numbers, we can speculate that the Lumia 640 and Lumia 640 XL will be mid-range devices, one little, one large. Expect more details on the handsets tomorrow morning when we'll be live at Microsoft's press conference.
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