This tool allows you to draw something, then rotate it as if it was in 3D space.
I know tools like this already existed, but I wanted to make my own version

UPDATE 2014: 8 bugs fixed, optimized for speed (it's now 5x faster!),
added new functionality: Z scrolling, line mode, erase mode, undo rotation, clear board

Point mode | (Hold shift to rotate x axis; ctrl to rotate y axis, scroll to move Z, p=Point, l=Line , e=Erase)
Grid Z:
Paint Z:

Line from: ,
Line to: ,

Current rotation:
x axis: 0.00
y axis: 0.00