This is the missing part of Google Glass. For interacting with the Glass you don't have to touch the Glass itself. You can just perform gestures on your jeans.
You mean, for those rare occasions when Google Glass just doesn't cut it to make you the nerdiest guy in the room, you can now get an extra-boost? Well, sign me up!
Nah, that's too blatant. Have your shirt recognise small movements of your upper and lower arms and shoulders. With practice you should be able to enter reasonable-bandwidth data similar to on a cell phone keyboard without anyone noticing (and without having to use your hands).
I can't help but imagine how awkward that would be. If tilting your head repeatedly and talking to yourself was not enough, touching yourself all over the body will definitely make you look awkward!
If it's awkward, you've designed it wrong. Touch surfaces in your clothes can allow almost totally discreet operation. Just put them on your thigh, a little to the side, and you can operate them while standing or sitting without most people noticing.
