Uber had a $1.2 billion funding round, but please don't think it's worth $17 billion

[youtube https://www.youtube.com/watch?v=HS6pegcrrDI&w=620&h=315]

It was the (single-biggest) funding round of all-time, surpassing Facebook from years ago, and it's been confirmed on their official blog. The valuation is $17 billion, one of the largest tech start-up valuations ever, and it appears "the sharing economy" may be well ready to become "a thi…