Is there software that would allow me to map on a globe? That is, instead of drawing in 2D, I want to be able to draw on a sphere (or better yet, a sphere that's slightly distorted in the same way Earth is), so I don't have to worry about distortion.

If there's a way I could do this in Photoshop or something else, do tell. I don't necessarily need software that's specifically made fro mapmaking.