Dapper Vision's OpenGlass project sees Google Glass' camera as useful for more than just hands-free pictures -- it's a tool for interpreting the world around us. To show that potential, the two-person group has tested two of its Glass apps with visually impaired wearers. The first, Question-Answer, lets the poor-sighted ask both Mechanical Turk and Twitter for help in identifying objects. Memento, in turn, automatically recites notes when the user looks at a recognizable scene; it can warn users about dangerous equipment, for example. Dapper Vision tells us that the OpenGlass apps will stay in limited testing until Google lets developers offer Glassware to the general public, but the company isn't sitting still in the meantime. It's devising a way to reward Question-Answer contributors with BitCoins, and it will demonstrate new Glass-based augmented reality software next week.