That's a great Idea. It's make our everyday life more easy and comfortable.
Not only Uber, there are many companies that now accept Bitcoins as a payment. No doubt, it is a great help for BTC holders. Steam, Tesla, Subway, Stripe, WebJet, Whole Foods, Zappos, Zynga, Microsoft, Amazon, Wikipedia, Overstock, Paypal/Ebay and many others. This also means Bitcoins is the currency of future.