How will you activate so that you can super-serve your passionate community on this platform? How will you reward peoples information exchange? Time to find out how. Hopefully the focus will not be in the number of opt-ins brands get their hands on, but rather what of value it can offer that enrich their customers life. I would personally love to work out something utilizing RFID as well - to be able on location, or near, to serve up the right information or offer. Although I am sure it will be mostly work with Facebook, again... Facebook Places/Deals (and not least building Facebook shops but that is another post)