MojoKid writes: Windows 10 isn't even out the door yet, so what better time than now to talk about its successor? Believe it or not, there's a fair bit of information on it floating around already, including its codename: "Redstone." Following in the footsteps of 'Blue' and 'Threshold', Redstone is an obvious tie-in to Microsoft's purchase of Minecraft, which it snagged from Mojang last year. Redstone is an integral material in the game, used to create simple items like a map or compass as well as logic gates for building electronic devices, like a calculator or automatic doors. The really important news is that we could see Windows Redstone sometime in 2016.