The latest iteration of Google's mobile operating system, currently codenamed Android M, will be announced this month. It will be be unveiled at the company's annual I/O developer conference, which kicks off May 28. The info is based on the description of an I/O session in the conference agenda, mentioning the word "Android M". That session has since been removed from from Google's I/O website. Although the details are scarce, it was revealed that the mobile OS will be enterprise-focused, and will provide a service - dubbed Voice Access - that Google claims "gives anyone access to their Android device through voice...
Source: http://www.gsmarena.com/google_set_to_announce_android_m_later_this_month-news-12209.php