The video on the landing page does not play.

'Video format or MIME type is not supported' on firefox 37.0.2 win 7 x64

I experienced the same problem here (37.0.2, Linux).

I also think a few screenshots would be nice; I rarely click on a video when commuting, especially if I don't have my earphones.

With that said I think this is a fantastic product idea.

Strange, I have the same Firefox on a Ubuntu 12.04 and the video plays. Did they fix it in the last 3 hours or did I install some uncommon codec?

This is the direct URL to the video https://d3j28ekqdam5rw.cloudfront.net/assets/slinky_demo-4c0...

Ditto that on Firefox, OS X

This is awesome