We purposefully chose not to make 'an app' right now but to work in the browser, this gives us a different form factor to play with and some pretty powerful tools to get to the point where we really understand the space well enough to make a move. Think of the present project as a study, a way to have a zero-tooling set-up that allows us to work on this without having to worry about platforms and other fast moving targets. The idea is to first make it work very well and to address all of the valid concerns raised in this thread (of which we for the most part were already aware, but HN wouldn't be HN without its brutal reception of any piece of work). Then when it is bullet proof against such criticism it can be launched to a much larger audience.