wait
I would wait for a case made for the Touch. It's so much thinner than the phone. Why ruin the look of it with the bulky phone case. For now i'm using my old 40g case. It's a leather flip one that just makes it over the top, just makes it into the width to protect it while it's in my bag.
I will probably wait for a clear hard case OR a leather wrap type. I have a clear hard case on my Nano and it had done a grea job protecting it. When i take the case off, it looks like new AND you can see the beauty of it while it's in the case.