I just installed 2.0.3. TTS still works (on The Hobbit that I just purchased anyway). The font is adjusted slightly. For example the screen where it shows your library has fonts that are slightly crisper and less blurrie to my eyes. I am comparing two Kindle 2.0's side by side. The fonts were really bugging me and now it's slightly better but I don't see the improvement I was expecting.
Jason - I had the sun fade issues on one of my Kindles and had to send it back. The other was just fine. I think it's a hardware problem but you'll know soon.