WARNING message...

josh4908 wrote:
I can understand how this can be scary the first time you see it. ALWAYS click PLAY NOW. Sorry for the caps but I can't stress it enough

It depends. If you are actually playing the game on 2 devices, then you should make a decision - if you press PLAY NOW, then the progress you made on the other device is lost up to the point of the last synchronization. Usually this is not much, but for example during the last outage I waited patiently and didn't play on my iPhone (where I possibly could, as I got the prompt) because I knew I made lots of improvements on my iPad what were not synchronized (and where I could not play due to connection issues) .

If you have only one device, then the PLAY NOW is an obvious choice - pressing OK will not allow you play (ever).