It's nothing like becoming an Xbox or Wii developer. I've been through all the processes and becoming an iPhone developer is cake. It's not completely open but it's easy enough. Mark could very easily develop a version of Blitz for the iPhone just as a bunch of Garage Gamers (not even official employees) and the Unity crew among others ported their work for it.
I would actually like a development tool for the phone ... something I could create prototypes "on the go" with. I may end up just creating something myself.
I would actually like a development tool for the phone ... something I could create prototypes "on the go" with. I may end up just creating something myself.