How does DoDonPachi on Android+iPhone do input?

[STGIntervention]

I just bought DoDonPachi and the touch controls are spot on, but I'm not able to recreate it for my own game, even trying different smoothing methods and sensitivities. Does anyone know how it was done?

[trap15]

When finger moves, move ship distance*constant, where the constant is some arbitrary value that you come up with through testing.

[STGIntervention]

I meant the specifics of it, rather than the method. It feels smoothed in some way, but the movement amount appears to be near enough 1:1 or slightly over. I've tried several smoothing methods and none of them seem to be similar. I'm developing at 320x240 so I'm not sure if that has anything to do with it.

[Formless God]

This moves your ship in the exact same path as your finger and I'm sure it's what Dodonpachi uses. The motion is as smooth and precise as you can get.
OR maybe it's just the camera's adjustments that makes your ship's movement look smoother than usual.
Can you give an example of those smoothing methods?

[STGIntervention]

Hmm, maybe I'm just imagining it then. I was positive there was some form of mouse acceleration/smoothing type effect, but I'm probably wrong and it just appeared that way. I'm using something similar to the code you linked me, but thanks nonetheless, it's always helpful to get others' input.