I have a few questions/concerns about GS. I've been looking around at things created with GS for the past hour or so, and it seems like nice software.

However... all of the demos I've played, or watched videos of, seem to all have very low poly models, and very low resolution textures. Why is this? Can GS not handle high polycounts and hires textures? Or is it just becuase that's how the modelers/programmers decided to design it?

Are games created with GS actually compiled, or are they just scripts that interact with an internal engine?

I'd really like to start learning to create 3D games (I currently design 2D games). I just want to make sure this software isn't so limited that I'm going to end up disappointed when I finally get the hang of things.

Thanks!
Adam