Hi everyone. I have a small suggestion. How about to make challanges notification only when player is acutally challenged. At the moment notification (small envelope next to Challenges button) appears every time you get an email, which is pretty often if you consider battle report and accepting challenges by the other side. My point is that currently this notification doesn't work because player ignores it since it appears so often and therefore responding to challanges are very slow in both ways (when I send a challange to somebody and when somebody sends a challange to me).
Cheers.