Cortanium is a recent Windows 10 release from Liquid Daffodil. They are the creative minds behind Windows Phone apps such as Fanband, and with Cortanium, you get more than twenty commands for the Cortana UI.
Using Cortanium, you can easily do things through Cortana such as get movie or television recommendations, horoscopes, check your OneDrive space and more. The app does require Windows 10 and while it is compatible with the Technical Preview, you may experience occasional inconsistencies and some services not being ready for production.
Full story from the WindowsCentral blog...