When Khaled codes in the support for it, which I doubt will happen soon. As other users have commented, not all versions of Windows support IPV6 and "more common" doesn't mean common enough to warrant doing it at this stage. I would readily suggest that most networks don't provide support for it.
There was a story on a website (I forget which one) re: IPV4 v's IPV6 pros and cons. It was stated that there is still 1.2 billion IPV4 addresses left so I don't understand why you'd be having problems.
