…e them on any platform that supports OpenGL ES -- not just iPhone. The driver is based off the OpenGL render driver.

There are a few differences between OpenGL and OpenGL ES that present difficulties for this driver:
- OpenGL ES does NOT support many pixel formats (for example, no GL_BGR).  Also, when using texture functions format and internalFormat must be the same -- this means 32 bit packed formats like SDL_PIXELFORMAT_BGR888 cannot be automatically converted to GL_RGB (which is 24bpp).
- OpenGL ES doesn't have GL_PACK_ROW_LENGTH, which means data must be reformatted before uploading changes to dirty rects.  This change has been added.
- OpenGL ES doesn't support paletted textures, though there is an extension.  I'm looking into this.

Some other notable differences:
- OpenGL ES has an extension called GL_OES_draw_texture which allows for quicker 2D sprite-type drawing.  I use this in GL_RenderCopy when it is available.  The iPhone supports the extension, but the iPhone Simulator does not (presently).
- No glBegin() / glEnd() and no GL_QUADS!  I'm using glDrawArrays with GL_TRIANGLE_STRIP instead!