Welcome to Exilian, Registered. I wasn't a member when this thread started, but I think it's a pretty good bet that if work ever did start on an app, it only got as far as someone's hard drive. If you want to have a go now, I think we'd be interested, at least as an intellectual exercise. You might like to bear in mind that all the points from Jubal's post still apply. Also, I don't want to discourage you, but from my own experience I would say that the site runs quite adequately on a smartphone web browser, so I'm not sure that an app would have much take-up.