The tutorial and the demo are one. The tips and tricks covered in the tutorial are used in the demo. This way you can, not only look at screen shots, but you can walk through the demo level and see the tips and tricks in action. Not only that, but all the resources from the demo (textures, etc) are free for you to use as you work your way through the tutorial.

So, be patient. It would really be best to release both together.