OK, for the record, yes, I am very anal.
I noticed a straight, vertical crack on the corner of my Touch Pro. It's not really a big deal, but it's there. I've treated it with great care. It hasn't been dropped and I carry it on its own in my pocket. There's nothing I'm aware of that would have caused it. I'm not sure that Best Buy or Sprint would replace it for this reason alone, and other than a creaky battery cover (which I fixed somewhat with some tape) and a bit of play in the sliding mechanism (which I think may be common), the hardware on this phone seems good. It doesn't really bother me that much, and as you can see it's pretty subtle. I'm just curious if anyone else is seeing anything like this.