Another key figure behind Microsoft's Surface devices has joined Amazon and former Windows and Surface lead Panos Panay.

Panos Panay has a Diet Coke problem ... It was Panay’s first launch event with members of the media since he left Microsoft ...

Ralf Groene was responsible for the design of Microsoft’s Surface tablet, and worked closely with former Windows and Surface chief Panos Panay on a line of Surface devices over the past decade.

The new design was shown, but not actually discussed, in a video that was posted today on Twitter by Microsoft's EVP and Chief Product Officer Panos Panay. The new design had already been leaked ...