We do have something pretty close to that in germany since roundabout two years. Either parent of the child may take paternity of up to 12 month in total. I think the mother gets a little extra time and there is a bonus of two month if both parents choose to take a leave of at least two month (so then it's 14 month in total). You get paid the lions share of the wage you had by the state. There's quite a couple of fathers that take at least the two extra month, but I actually know personally two fathers that opted for the full twelve month with their wifes taking the extra two. It will probably take another couple of years until that's widespread though. I can look up the exact details if anyone's interested.

I think this is a pretty good solution to balance the fact that it's women that need to carry the child - now companies have less of an incentive to penalize them for that.