> There is a clearly defined platform / SDK, like in Android or iOS. If it works in your development environment, it's guaranteed to work everywhere. Are iOS/A

> There is a clearly defined platform / SDK, like in Android or iOS. If it works in your development environment, it's guaranteed to work everywhere. Are iOS/Android SDKs good examples of stable platforms? They are just as much a moving target as anything else and the only thing certain about them is that they _will_ require maintenance.