Devised for developers and OEMs, the Cortana Skills Kit and Cortana Devices SDK announced by Microsoft will enable development of Cortana powered personal assistants on smart devices. The Cortana Devices SDK is currently in private preview.

Microsoft is partnering with high-end audio developer, Harman Kardon
[blogs.windows.com...]

Developers wishing to sign up to join the program should look here [developer.microsoft.com...]