If we played a word association game and I said “Location Based Marketing”, you might say “Foursquare”. After all, the system was the first to grab widespread consumer attention in the space and put “LBM” in our marketing lexicon. Competition has sprung from every corner, and now Shopkick is hoping not just to represent the most formidable competitor to Foursquare, but to leapfrog it and become “the” model for how retailers should incorporate....