Yeah, it sure is cool! Making that texture took no time at all.
To see if my texture looked good on a sphere, I loaded up 3DS Max and created a sphere with 100 segments. I then applied my bitmap to it. Below are the rendered results. Click on them to see more detail. Without clouds, atmospheric glow, or ocean detail, the planet looks pretty basic. But those details can be added later.
Surprisingly, the texture seamlessly fit on the sphere! Here's a picture of the largest continent, with a nice view of the north pole.

And here's a close-up shot of the other side of the planet. See how detailed the coastlines, small islands, and terrains are?

And here are two more pictures of the poles. The first one is the south pole, and the second the north pole. These are just to show you how the texture fit together at the top and bottom of the planet.


It was shocking that such a rectangular texture could fit so perfectly to this sphere. Actually, this planet is a bit like earth, since this planet is slightly flatter than a perfect sphere.
I have a feeling that if I apply this texture to a SINS mesh file, the poles would be distorted. This would be because my texture is not in a cross form. Are the mesh files in SINS designed only to fit cross-shaped textures?
If so, could I make my own sphere in 3DS Max, apply to that sphere the texture I've made, and load the completed planet into SINS? How would I go about doing that? Would I have to convert my 3D model to a mesh or something?