This is pretty much the last update on this. It has now been a solid two months since I received my TypeMatrix keyboard and I decided to update based upon something I noticed the other day. Very simply, I noticed that I was consistently and accurately finding all the keys, including the symbol keys, and that my typing speed has nearly returned to normal. Just to verify, I went through the typing tests in gtypist and found that my speed was consistently hovering around 95 wpm. My previous speed was 102, so I am 93% of my previous typing speed... those speeds include symbols. Considering that I have started going back and forth between traditional keyboards and the TypeMatrix again, that is not bad. I am continually progressing in speed, so I believe I will very quickly overtake my old speeds.
In my opinion, this makes the move to TypeMatrix complete. It's been two months and several thousand lines of code, emails, Facebook updates, and what not... this does not seem promising for my ability to learn a completely new layout(moving to Dvorak), which is a bit disappointing. Given that key locations are only modified on the TypeMatrix, Dvorak may just be a project for my kids rather than myself.