pdair cases are pretty well made.
the thing I find irritating about them is the closure strap/clip is attached underneath, so that when using the zaurus, the strap dangles in the way (at least it does on my 860).
if the strap were on top, it'd be out of the way.
I'd have to go check the 1000/3000/3100 case, unused in a drawer which I bought by mistake (but since I want to upgrade have hung on to), to be certain it's the same