There is a current system that allows you to use email notifications. You can find this option in Game Settings.
Then you can keep your email open in another tab and a (1) will appear when you have a new mail.
Also, if you are using Firefox, you can install ConquerTell
which will bark a dog at you when a turn is ready.
If you are using MacOSX, there is a widget you can download which will do the same thing.
Since there are so many options already, I doubt this will be implemented.
I have often heard him say that he would not begin life again if he had to pay for it by his years at school. There is, he is accustomed to say, only one crime which is beyond pardon, the crime which poisons the pleasures and kills the smile of a child