The visual communication says the show was successful exploitation the Unity Engine, which instrumentation they took many Portal assets and successful a small show with them. They didn't take the full game and squirt it onto the iPhone; what you see is probably the intact thing. There's no way the Source Locomotive is running on the 3G. Maybe the 3GS, but not the 3G.
In whatever case, I envisage stressful to play Portal exploitation touch controls would ruin the intact feel anyways. Good stick to playacting it on at PC/console. [Touch Arcade via Kotaku]



