I've assumed that Facebook would be adding location to their mobile clients in the near future. In doing so, they won't hav to resort to the games Foursquare u

I've assumed that Facebook would be adding location to their mobile clients in the near future. In doing so, they won't hav to resort to the games Foursquare uses to try to get to critical mass. I also doubt that foursquare has any key infrastructure pieces that would be useful at facebook scale. In short, an acquisition doesn't make much sense, other than as an acquire to hire signing bonus. I think the best positioned player in the mobile location based service space is Apple. They are well positioned to get paid well, no matter what service ends up winning over the most users.