Well, I'm a PC gamer and I have to say that I cannot possibly see myself playing the majority of the games I play now on a phone with no solid control scheme and a 4" screen. Touch screens do not play well with non-casual games. I've tried some of the cute RTS games available for my Android phone and they're practically unplayable because my finger obscures my view of the screen.

Now, if you're saying that at some point in the future I'll be using my phone for gaming by plugging it into my TV via HDMI and using a keyboard/mouse combo via USB or Bluetooth, then sure. But at that point it's no different than what I'm doing now.