On twitter, it looks like he apoligzed: "sorry for what I said ... no excuses." But then he e-mails VentureBeat with--you guessed it--a bunch of excuses:

  When the game blows up ... and one employee, who didn’t work on the product,
  and is more about his own games then the team, jumps in the press and becomes
  the story, it is very hurtful to all the people who are on team.

  [W]hen you give blood, sweat and tears on something and someone who doesn’t
  even work on the project, and prioritizes his own games as his own professional
  development over the team, becomes the story it is very demoralizing.

  [M]y point is that it wasn’t about Shay. It was about the 41 other people who
  made it happen. Those are the people I would throw myself in front of the
  train for and those are the people I want to celebrate.

So, to recap, Shay was fired (for refusing to accept a change in the terms of his employment) and wrote about it. Porter still seems to take offense that Shay wrote anything to distract from OMGPOP's preferred message, continues to call out Shay for not being a team player, and says he would throw himself in front of a bus for every OMGPOP employee except Shay.

He didn't apologize. After an apology, you need to back up your words with actions.