Cortana in action (Video)

[boshkop]

Cortana on Windows Phone 8.1 - YouTube

Windows Phone Lovers Facebook page posted it few hours ago.

Looks cool and legit.

 

[Bryan Sayas]

WP Central already tweeted this hours ago.
Anyway, this one is legit. I have been messaging the uploader from youtube but he doesn't spill the beans about how he got the early build. He's also the only one who updloads legit stuff about WP8.1 .