The collaborate button for the Web.
Get instant help in Codeacademy from a 1337 programmer friend. Coordinate travel plans with some buddies on Hipmunk. Sugarbox provides the perfect experience with just a single click.
Sugarbox can make anything on the Web into a real-time collaborative experience, that you can record, without the original developer having to do anything. The awesome part about Sugarbox is that there is no software to install, everything is written in modern Web technologies.
If you are a Web Developer, the recording feature is especially useful for QA on websites. You can just record the bug quickly instead of having to write ambiguous instructions that you'll just have to explain later. Additionally, you can use it to record website tutorials or other fun things around the web.