there is such an option already:
http://support.chess.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=684&nav=0,6
there is such an option already:
http://support.chess.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=684&nav=0,6
Suggestion:
Offer an option to claim a time-elapsed game win or not.
If I'm playing a friend, and we both know we are hard at work occassionally, we both don't mind forgiving time-lapsed moves. In fact, in correspondence chess, isn't it expected that moves may take longer sometimes?
For those games that are a little more serious, or live games, the existing mechanism works great.