: The trick to the controls is to lift your finger off the screen after ever move or two. Try turning up the d-pad follow setting to 1/4 or 1/2 the way up - you'll be surprised how much easier it becomes with a bit of practice. I'm considering a stationary option, it's just difficult to do it right since the game is fullscreen and it'll always be in the way.
: I'll confess I usually play it on my iPad
I'm looking into universal support, though in that case it will just be blown-up iphone version to keep the leaderboards fair. I'd like to do a full-blown "HD" port with a bigger play field but that's a ways off at this point.
: If you crank the d-pad "follow" option to the max then yes, it's very similar to the swipe controls (which I now call "flick" controls, BTW). The big difference is when the follow speed is off or lowish. The biggest complaint I had about the controls was that people were accidentally flicking in a new direction when lifting their finger off the screen. The d-pad is much
more forgiving in that respect, and the visuals provide useful feedback so you can see exactly how the game is interpreting the input. That said, I consider the d-pad more of a training wheel for the flick controls than anything else.