Microsoft’s upcoming Windows Phone 8.1 update will include Cortana, a personal digital assistant similar to Apple’s Siri. Cortana is a fictional artificially intelligent (AI) character in the Halo video game series (Halo: Combat Evolved, Halo 2, Halo 3 and Halo 4) that provides backstory and tactical information to the user during gameplay.

The software hasn’t shipped yet, but it will be interesting to study how a character from a video game franchise is remediated (is “remediated” even the right term here?) to a feature in a operating system. If it works well, the brand recognizability will be definitely high, as well as the appeal to a younger, gaming audience.