"@bazza: You don't know what Oculus Rift is? Check some Youtube videos and contemplate what almost was."
@vociferous, I won't bother following up your recommendation. I've tried one of the pre-production prototypes. Cool, yes. Finished, no. Heading the right way, certainly. Perfectly pitched to reel in the wealthy and compulsive Zuckerberg, yes.
I don't know exactly that that was their game plan, but $2billion now is a handsome return on their efforts. They've probably had a lot if fun doing it, and now they don't even need to go through the depressing process of marketing their product.
For any start up getting bought out is most certainly factored into the business plan as a possibility. With someone like Zuckerberg around its well worth having buy-out as a primary goal.
As for Zuckerberg he's now got to make more than $2billion out of it. That might be quite difficult.
No one is going to use Facebook in 3D from their mobile. Facebook ain't the gaming platform of choice and Sony, Microsoft and Steam aren't going to give him any slack. It would make sense if he bought Steam too, but I suspect that they're not for sale at any price. And Facebook owning Steam sounds like a disaster anyway.
He could just market devices himself, but exactly how does that get more people spending more time in Facebook? It's just an elaborate peripheral. That surely isn't Facebook's primary business; people using Rifts on Steam/XBone/PS4/PC games are not going to be directed towards Facebook by those platforms. The world of CAD, engineering and science might be an additional marketplace but that's not a mass market.