It's nice for Yahoos, but I don't know if it's revolutionary. I think Google gives 7 weeks.
* to employees, countries provide parental or paternity leave, that this is through a mandate on the employer is an implementation detail
* a number of countries pay (either in part or in full) for leaves through their social security system, the employer involvement (aside from "normal" social charges and not having the employee during the leave) may well be nil