The running example in my comment was overlapping windows. a POS system might not need windows, much less arbitrary overlapping ones. That was the specific "fri

The running example in my comment was overlapping windows. a POS system might not need windows, much less arbitrary overlapping ones. That was the specific "friendly user interaction" i was talking about. I think you're taking me a bit out of context in order to talk about something you care about. I agree with you, so please don't hold me up as something I'm not.