While there are, indeed, unlimited avenues for creative use in film... I'm interested in opening the dialogue about Google Glass and live performances (dance, symphony, theater, and others).
The industry has walked itself into something of a corner over the years by establishing union rules that protect an actor's image or a designer's work. Recording devices for both audio and video have become smaller and less obtrusive, and the idea of simply saying "you cannot use these devices in our space, turn it off" could continue to be part of our pre-show speeches.
But doing so misses out on all sorts of potential that 'could' be available to us... if we are at the table as development and discussions happen. For instance, the ability to choose to tag paid events as access controlled... such that an audience member could record a show they viewed, but it would not automatically be available to all viewers... only those who purchase an access key. This would open up the potential for wider markets for live performances, it could allow for segments to be freely available for marketing and review purposes. And down the line, it allows live performance to integrate the use of streamed media (through the Google Glass) as part of the production experience.
Of course, none of that can happen if the live performance industries simply take their usual stance on technology... which is to respond too late and with a blanket refusal to allow its use in our shows. How do we go about having that conversation?