That's right, there is finally a full and stable 8.x [base] theme on d.o and it's Drupal Bootstrap! There has been an amazing amount of work put into this port over the past year. Several alphas, betas and release candidates later... we're pleased to finally get this project out the door! And let me just say, it's absolutely gorgeous :D
Over the past year this project also hit one of my own personal goals:
"Be the #1 most installed theme on d.o"