The version we saw appeared to be touchscreen controlled, apparently from a top-down perspective and, frankly, not very clear, as the speaker showed the iPhone game via his laptop's built-in camera. Takahashi had earlier lamented in his talk that to fully connect the solar system in Noby Noby Boy, at the current rate, would take, well, it would take centuries.
"On average, the Girl is growing 40 million meters a day on average. If we go at this rate, in order to connect the entire solar system, it will take 820 years," Takahashi explained. "This is a problem. I'm going to be dead by then."
Takahashi hinted that he would like to add the growth of both the PlayStation 3 version of the game and the iPhone version, but it was unclear if this was possible. Takahashi did not provide specifics on a release date, saying it had only been in development for a week or so, but said it could potentially be free.