Tokanizing of Fast Food Chains

I just read a newspaper article here in the US about the sandwich shop Subway is starting to offer "Subway Tokens" as a key to earning discounts. Makes me wonder how many places like that are aware of OST and how do we get the word to them.
MacDonald's, KFC and even grocery/retail stores. How many times have you been in a shopping checkout lane where the little old lady in front of you dumps out her purse in search of coupons. Couponing is a huge industry in itself.
Retailers and restaurants have conventions. some are enormous - maybe OST could hire some ground folks to be at those conventions with a booth and information. One lecture in a big group of business ceo's could reap a lot of benefits. My guess if Subway has already come up with a token there must be at least a few thousand companies intent on not missing the token boat. OST makes that implementation easy and save them a lot of trial and error figuring out how to make one. Is this approach already in the plan? Comments?