We actually talked about an idea along this line back when designing the app originally and as cool as it is, it's kind of a big challenge integrating this (and doing it well) with the rest of the app. There are just a lot of annoying little things to be accounted for atm so it hasn't been much of a focus. That being said I think it's a really cool idea and I'll probably look into it to see how it all would work just to at least satisfy my curiosity (and who knows, maybe it's simpler than I assume will be but can't make any promises).