Cortana is Microsoft's personal assistant available for Windows and as beta for Android. The company is now seeking testers for an initial Cortana beta release for iPhone and iPad. Those of you who have been eagerly awaiting the arrival of Master Chief's trusted ally will now be able to enter the program, which has a limited number of spots available.
The company has noted already that some features available on Windows are not yet implemented on the iOS version – including "Hey, Cortana" to wake up the assistant – but the team will work on ensuring the experience is solid when used within a Windows ecosystem.
For the time being, this initial public release is available in China and the US only, and as aforementioned, access will be limited. Download links will be fired out to accepted applicants in the coming weeks.
You'll need to fill out this Microsoft survey to get started.