I think it could be argued that formulaic design/experience HELPS long term, if you have some functionality that the user needs. If your app looks/acts/feels li

I think it could be argued that formulaic design/experience HELPS long term, if you have some functionality that the user needs. If your app looks/acts/feels like the rest of the OS or environment, the user will (in theory) learn it faster and use it more fluently. A 'revolutionary' design may be awesome, and may increase the productivity or ease of use of your specific application, while causing some serious friction between your app and it's environment in the users mind.