I've always thought of portable gaming systems like the Nintendo DS [1] or Sony PSP [2] as substitutes for the real thing. Don't get me wrong, I always slip my DS into my purse when I know I am going to have to wait for a plane, train or automobile, but it's just not as engaging and exciting as playing the game on a console like the Wii or Xbox. It's the big sound. It's the vibration. It's the big screen. When it comes to gaming, do you prefer one or the other or do you love them equally?