I found the presentation informative to watch. Thanks! :D
Where i work we do a lot of training camtasias (nothing this interesting) that we put into products we sell.
If I had to hold you to the standards we need here, I'd make the following comments...
1- resize your screen and redo the capture at 800x600. the current capture (1024x768?) requires me to resize my screen to 1280x1024 in order to access the quicktime control buttons. Many monitors, including mine, can only do that resolution at 60Hz, which is flickery and tiresome to watch. Careful placement of your toolbars and windows should make 800x600 a feasible area to do the presentation. I think Anzovin does their videos at that size.
2 - practice your presentation so you can do it without any verbal mis-steps. you might be able to cut a minute out of the running time that way, which would be good for your end user who's downloading it. Don't read it from a script, however.
2b - I do like it when you explicitly identify a keyboard shortcut you are using ("press h to hide..."). Always do that.
3 - the audio is echoey. My home office is a bare plaster wall room which sounds awful to record in. On the occassions when I've had to lend my voice to something, I throw a comforter over my my desk, my PC, the microphone and myself... instant recording studio! Not perfect, but a substantial audio improvement.
4 - since this tut is about the general concept of flattening and not about flattening this specific model, if you have some editing capability (FinalCut, Premiere, AfterEffects...) you might consider time-condensing (fast-forwarding) the sections where you are repositioning CPs around the lips and chin. You've already explained the reason and method while doing the nose, and since the other two areas don't present any complications that weren't present in the nose, they could be sped up without the viewer missing anything. If your editing software won't let you speed things up, a dissolve from initial state to completed state for the two areas might work also. I've seen Anzovin do this on their videos.
This would also cut down your ultimate file size.
[b]Thanks again for doing this![/b] :) I think these video tuts are a big advance over still screen captures in HTML. Maybe a hassle for some people to download because of their size, but i have DSL.