Microsoft is planning to bring its Cortana voice-powered personal assistant service to iOS, and is looking for a pool of iOS users to help the company beta-test the technology. The company is now accepting signups in the US and China from "Windows Insiders," or those who helped beta-test Windows 10, and will limit the number of people who can get early releases of the software. Microsoft has been testing Cortana for iOS for six months already, and there is no known release date for a final version.
