Back in October, Microsoft unveiled a pair of dual screen concept devices that grabbed plenty of headlines. The Surface Duo which is the brand's first dual-screen smartphone running on Android and the Surface Neo which is essentially a larger tablet version of the Duo with Windows 10X on board. Both are expected to arrive for the 2020 holiday shopping season but Microsoft is giving software developers a head start. Today, Microsoft released its Surface Duo preview SDK complete with an emulator and Java frameworks, allowing developers to begin experimenting with the two-screen form...