”That said, with the growing number of actual revenue-making business deals, Foursquare will have to address this sooner rather than later. The point of every game is to win it. And sadly, where there’s a game, there’s a person willing to cheat at it.”

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Here is my thought on this:Without knowing the latest development in GPS technology and just by reading publications out there, the technology is not ready yet due to the fact that currently the precision of civilian GPS is 65 feet, so it is hard for Foursquare to reliably use GPS to find out accurate customers’ locations. Given the situation, Foursquare might have to choose to go with something simple like dynamic QR codes at the venues where customers check in by scanning the QR codes with their mobile devices or a device to bump against with their mobile phones.

The challenging part with this approach would be obviously making it available everywhere, but if you look back at the history, that’s the way it is, until the technology is ready and massively available,  we need to find a solution from what we have now - of course, actively patenting currently-not-solvable ideas due to the current technology limitations for the future I am guessing the solution would be a hybrid model between GPS and QR code type validation, but I am hoping that Foursquare team come up with an innovative solution to surprise me and the world.