Even though I am not an investor, developer, I am looking forward to SMT/HMT. If I am seeing it right, someone could build a Store credit/reward card similar to what a lot of big stores have where they add a little bit of a customer reward to your card for a future discount on a purchase you make later.
The problem is the reward card only works at that store and you can not transfer your rewards from Store Ones card to Store Twos card. SMT's seem like they would allow for the simple easy transfer of rewards from one card to another, so all those coffee rewards, grocery store reward, drug store rewards, could all be combined and transferred over to you Favorite Restaurant Reward card for a free meal.
Whether a level 1 or level 2 system for me is not important, just the transfer ability from one card to another.
I got dibs on the name 'Green Stamps'.
Those worked pretty good for awhile, fill a few books in with stamps from all different types of stores, and then trade them in for something you really didn't need but still it was free. My mom liked saving the stamps and getting little things she would never spend real money on.
Green Stamps were a prophecy of SMTs.