Android M Preview for Sony Xperia Devices

Android M starting to roll out for developer preview. This developer preview released to introducing the new update and fitures that will bring on android M, developers also give feedback to google.
Sony won't loose this moment to try android m preview, and release android M source to build AOSP for xperia device. Only latest version from xperia devices will be get the source. For all Z family especially will get it all, the other version is for M2, T ultra.