I tend to use the app before I leave home - so not an issue to have it out at the bus stop. No use worrying about when the bus is coming if you are already at the bus stop right? The app is for all bus stops - so the expense to tfl for having the boards on a limited number of stops does not make sense when the majority of people get the information for free. I prefer the money be used to improve services, including new buses, more regular buses and cleaner buses. For those that cant afford a smart phone, there are other ways to manage travel. You can check on the internet before you leave home for instance. These days, you can get smart phones very cheaply; it doesnt need to be the iPhone 5s.