Microsoft posted a page detailing some of the finer points of Cortana’s latest additions, which include NFL predictions (for those in the U.S. who love the football), definitions — which is something I’ll definitely use at some point to define weird words like finnimbrun — and she also offers health and fitness advice.
There are also a number of new interests added to Cortana’s Notebook as detailed below:
There are some new interests that you can add in Cortana’s Notebook. Local apps helps you get app suggestions for events happening around you, and Best nearby gives you recommendations about restaurants, places to shop, and other spots near you based on Foursquare popularity—this will work even if you’re not signed in to Foursquare.
Cortana can now also play nice with apps like Facebook, Twitter, Skype, and LinkedIn. Want to look up a friend on Facebook? No problem. If you have the Facebook app installed, press and hold the Search button to activate Cortana and say, “Facebook, what’s up with [friend’s name]?” and you’ll be taken straight to their wall.
There are also some new “chit-chat” phrases worked in, so try them on Cortana. Be sure to post your favorite responses in the comments.