Indeed. i got the impression it was live, but it appears not yet. i'll sign up for beta testing though.
An even more interesting project imo. & on similar lines is #Zano, with Confidential assets, Zano Bazaar (a privacy marketplace) and a privacy DEX becoming live shortly after the hard-fork in 7days. https://zano.org
Some free Hive-engine tokens for you:
!PGM !PIZZA !LOL !LUV
RE: Tree.Market is now on Hive!