I could only find one partial thread on this subject, and it didn't seem that this was resolved.
The site below suggests that a number of Rogue beers will have live Pacman yeast in them:
(scroll down to the Rogue entry)
Since pacman yeast isn't available anymore from Wyeast, I am wondering if it would be possible to culture some from the dregs at the bottom of a Shakespeare Stout or Mocha Porter.
Has anyone tried this, or can anyone confirm the article above (it is pretty dated)?