No didn't see it, hopefully it is a sign we will receive it in 2014 without having to go down the preview route
The 735 and 830 both come with 8.1 U1 pre-installed, so they have Cortana in the UK out of the box.
I also saw the ad numerous times earlier, it shocked me, its actually a good ad (which is a feat for MS). There was also a new Surface ad, which aired almost straight after the Cortana one. This some good marketing for MS.
The advert says that Cortana is available for 730 and other phones, but I don't think it mentions what these other phones are....
Anybody know anything more? Looking forward to getting her on my 925.