Yes, and it works better than I'd ever have expected. I'm actually using a regular usb3 flash drive as a keychain gaming rig. Skyrim running in 5 minutes on any PC or Mac.
I never really thought of that but that's pretty smart. Then you can take your games anywhere and a USB3 256GB drive is super cheap nowadays you could pack a lot of games on it and play at friends houses or really anywhere. Slick.
Granted I'd rather just have better gaming capability in a smaller, dockable device like a Surface but I see the merit for sure.
Yes it is. Some variants even include a hardware security module so that you can store your encryption keys on it and keep everything but the bootloader encrypted (assuming proper software support of course).
Start here: http://www.intowindows.com/4-tools-to-create-windows-to-go-u...