App developers will be getting something new from Microsoft when the company releases Windows 10 according to news coming out of Build 2015, the Microsoft developers conference. The operating system designed to work on PCs, Phones, and Tablets, will be open to almost all developers including some that worked on Android and iOS when it is released later this year. The Microsoft store currently contains near 585,000 apps which is about half of what Google and Apple offer in their stores. So new apps are greatly needed to keep their products useful and competitive.