Just curious...why do you prefer digital versus paint and are the techniques the same?
I prefer digital, personally, in paint anyway, because it's less messy, there's no cleanup involved, and it's never too dry to blend if you want to. For just drawing, I still prefer pencil and paper, because I can just do things with a pencil and paper that I can't with digital. Not yet anyway. ]
Using digital paint, it's not really much different really, though I never did a whole awful lot of painting. You just draw on the pad where you want things to happen on the screen, and make sure you've picked the right brush for the effect you're looking for.
Honestly though I'm pretty new to digital, so I may well be the wrong guy to ask. Ink is much more versed in it and has more experience than I. I still haven't got to a point where I can do work with digital of the quality I can with pencil and paper. I love it for its versatility and convenience however, and I find it very easy to get inspired and draw for a few hours using the digital pad.