The past few times I've been to the movies it's been to Cinemark theaters since they added the cupholder-based captioning devices to almost all of their theaters a few years ago. They work well, but as the article noted, they're a pain because they're out of the line of sight and often don't want to sit still in the cupholder. When my fiancee and I went to see Les Miserables I spent pretty much the entire movie holding onto the captioning device with one hand to keep it positioned where I want it.
We have a couple of Regal theaters near us, so I'm definitely looking forward to trying this system out as well.
As for the comments on Glass -- yes, a real-time captioning device using Glass would be a killer app for me, and if it worked at all well it would be a "SHUT UP AND TAKE MY MONEY" sort of thing. There would be some challenges to deal with (noisy environments, better speech recognition still -- Youtube's automatic captions still aren't there) but if they can surmount those, I'd be extremely interested.