This is one of the most groundbreaking uses of the Steem blockchain I have seen suggested, the potential is huge to move Steem forward. One of the single biggest moans I hear is that people are put off because the rewards they earn are difficult to exchange back to something they can use to help them in real life. Being able to easily purchase goods through earnings adds an extra level to the Steem Blockchain - plus it enables additional earnings for artists who can sell the work they post about physically, music and video creators can sell their works and creatives will be able to sell all manor of unique items directly through the Steem blockchain.
It is an exciting project that will need a great deal of support to get it fully operational, I am more then happy to back this concept because I think it will enhance and grow my own investment in the Steem Blockchain.