There is a great chance that tortillas you get in supermarkets contain a great deal of preservative harmful to your body. Why not make your own, it's super easy.
If you can't copy files that are bigger than 2 or 4 GB, usually HD movies and such, on to your USB key, it's usually due to the file system the USB key is formatted to.
Apparently Google Glass lets you take pictures by only a wink gesture. It has a second little cam/sensor facing the person wearing it which is suppose to detect eye movement and blinking gestures.