[Goober5000]

This is the first time the Grasshopper vehicle has flown sideways:

[Scourge of Ages]

Oh man, I think Kerbal Space Program has given me rocket-PTSD. I've seen too many ships go up, slide over a bit, tip over, and ram straight into the ground to watch this video without cringing.

[perihelion]

Whoa.

[Klaustrophobia]

so just where exactly are these guys getting their money?  if it's from investors, what's the ultimate plan to make a return?  sell flights to space i guess?  contract to provide services to governments?

[Dragon]

They already use their Falcon 9 for commercial satellite delivery. They plan to create a fully reusable LV that would make space launches really cheap. While I don't think the cost reduction will be as dramatic as they promise, this is still a good investment.

[Nuke]

this is to reduce the cost of launch systems by making the first stage recoverable and reusable.

[Lorric]

And it landed right where it took off from as well! 

It's certainly interesting seeing the progress of this.