Good old Presentation Zen. I didn't even know that they still exist. That article is from 2005 and as such somewhat outdated. Bill Gates has been giving quite a few great presentations after he left Microsoft (for example: http://www.presentationzen.com/presentationzen/2005/11/the_z...) and even Microsoft's presentations have improved, well, at least visually. Steve Ballmer is just no Steve Jobs.
One of my favourite comments is Bill Gate's "Ms Burns" hands. It's interesting to see how even in his newer (and much much better) presentations, he still periodically does it.
I actually find it endearing. Now that I've noticed it, I chuckle a bit inside whenever it happens.
Edit: Oh, Presentation Zen has also written about Gates' transformation recently: http://www.presentationzen.com/presentationzen/2010/08/the-n...