I'm starting to enjoy these - Blenderrendersky shares two YouTube 360° videos. To learn how to create them, check out Pedro Gaspar's tutorial that I posted earlier.
After finding out about the 360° footage youtube supports now I immediatly had to try it out. You have to watch this in chrome, otherwise it won´t work.
[Ed: I have to link to YouTube as the 360° mode doesn't work yet in embeds]
Of course I used the BGE to capture this Footage which was quite easy (Just go to "Stereo" options and change to "Dome" and then to "Spherical Panoramic". It works best with First Person footage.
I think I´m going to use this for something bigger and interactive, we´ll see...
You have to try this out yourself it´s just amazing.