Ooh, they mention it includes Hyperlapse! I haven't looked into Pix too much so I don't know if this is a full implementation (someone commented on an unnatural-looking stabilization demo, but I think it was just a poor choice of an example), but Hyperlapse is one of the coolest research projects I've come across:

http://research.microsoft.com/en-us/um/redmond/projects/hype...

The video demo there is worth checking out.