Well, Lei has said three years a few times, not necessarily all recently. I believe the last we heard from Kim herself, her estimate was around 5 years. I think Kim will continue to play as long as she is doing well and it is making her happy. However, Kim isn't as lucky as other players in that she can't just marry someone and expect him to follow her around on tour, because Lleyton obviously can't. So it becomes the inevitable career/family conflict that so many women face. I'd guess that Kim will stop when she's around 23 or 24.