RobertB,
You may not be able to tell us if any changes have occurred, but I'd like to point out some feedback that might be passed to the factory. It looks to me like the thumbwheel is not handy given the way the case fits.
Usually, I try to offer a solution when I have a criticism, but in this case

I'm not sure how I would provide greater access to the thumbwheel while still keeping both the thumbwheel and the device protected from drops.