Love the computer vision part working in real-time. I wonder if this works if I just set up a permanent camera with a chromebox pointing at a whiteboard. Then I can have an always-on remote whiteboard
Like apple pie, its good. Also the app totally doesn't follow certain conventions of virality. No social graph imported. Love that fact that it's blowing up.
The most evident pro is saving you to type many more lines of code to implement the download or upload of a resource (json, image, etc.) from/to a web server.
Is Schneier still a practioner enough to do this? After all his VC-funded companies and being on boards, etc. he seems more like a guy at 10K feet than some researcher who's deep in the weeds and knows the nuances.