Microsoft said they are developing a USB-C dongle that'll fit in the power connector slot of the Surface Pro machine. that should be good enough for people that want one.
Personally, I'm indifferent to it. All the technophiles are pushing it because it's the chicken and egg problem. There are few USB-C devices because there are few machines that have it. and not a lot of machines have it because there are so few USB-C devices.
There's just no true standard for USB-C. The plug is standard but nothing else. Right now, the cables are really unreliable and have been known to fry devices with USB-C such as Android phones. The only solution is to buy cables from known reliable providers such as Apple but having to pay enormous amounts just for cables and adapters.
Here's a sample article on the issue:
https://www.theverge.com/2016/2/4/10916264/usb-c-russian-roulette-power-cords
USB-C is reversible and can deliver huge amounts of both power and data very quickly. Importantly, it’s also backwards-compatible so that adapters and cables can get us through the awkward period between now and when it actually becomes the universal standard.
It’s that last bit that has USB-C in trouble. Right now, if you aren’t very careful, a USB-C cable can destroy your laptop. If you just go to Amazon and buy any pack of USB-C cables you find, you could end up with a wire that can destroy your machine in a flash.
That’s what happened to Google engineer Benson Leung, who, in the course of testing a USB-C cable, destroyed his Chromebook Pixel. It happened instantly. It also happened to me — I used a cheap cable I found on Amazon to charge my Nexus 6P and it drew too much power from my MacBook Air’s USB ports. Apple did a remarkable job engineering the MacBook’s ports — they shut down temporarily to protect themselves — but when they came back online, they only worked intermittently.
The problem is that when you plug a USB device in, it starts drawing power. If it tries to pull too much power, the device that supplies it can burn out. It’s not the Nexus’ fault that my MacBook got fried — it was just doing what it was supposed to do: ask for as much power as it can get. It’s not the MacBook’s fault either — its ports weren’t designed to handle delivering that much juice nor to know that they shouldn’t even try. It is the fault of the cable, which is supposed to protect both sides from screwing up the energy equation with resistors and proper wiring. This kind of failure is possible with any cable, but older kinds of USB devices didn’t draw this much power.