Remember the good old days of DOS, when you could open command.com with a simple text editor and find the line with the dreaded "Abort, Retry, Fail" message.
Unwary users were so supprised to see "You're F!*%ed" or some such. And no ammount of rebooting would solve the problem.
The wearables space is wide open and exploding with opportunity, but that comes with design and sourcing issues, which some believe could be alleviated in part by the strength of the maker community and an open-source approach to this segment.