I think this only applies if the two actions occupy the same space, and change when pressed? If I saw a separate play and pause button, I'd assume play means play and pause meant pause. If I saw only one button for play, I'd probably assume it was currently paused/stopped.
There is something deeply disturbing about the cats face. I know this is a static picture but it feels like it will, at any moment, continue to turn round and stare straight at me
Spark on both Android and Win. The AI integration is surprisingly useful, albeit I think a paid feature. I also personally like the look of the clients and they are pretty fully featured.