Yup, I'm waiting eagerly for Cayin to release one so that I can get it ordered. I hate silicone cases; makes everything feel cheap and crappy. Hell, my phones have clear acrylic cases that are made in China for $3. They're nicer than silicone junk.
Hint, hint...Andy! I'll be glad to beta a case for ya!
I wonder if they could make a TPU rubber case...it's different than silicone because it's smooth on the outside and doesn't attract lint and slides in your pocket easily. I'm sure you've seen them on smartphones.