Consider one thing though, "trusted computing" as a concept comes from the military. It is a computer the generals can put into the field and trust it to not leak classified info (be it the enemy, or the soldiers learning that their lives are being wasted).
So when you use such a computer, you have to ask yourself "trusted by whom?". Because it is also a lovely starting point for the *AA's to cram the file copying cat back in the bag.