alt Hacker NewsIn case anyone is interested, this creator built a remake of Portal for the N64, uploading a really cool set of videos describing the work that went into building it.
He's since stopped to work on his own IP, I believe that the issue was that Valve couldn't allow it because they'd never get Nintendo to agree to it. Something along those lines, anyway.
I think the main issue was he used Nintendo owned tools and libraries to make his game instead of the GPL ones, making the release of the port dependent on Nintendo's approval too. I guess even Valve didn't want to deal with their lawyers.