i was looking at the exoflip from iskin and was just curious if anyone has one and if they do if they have any problems from it....also i didnt see on the site but do they make on for the 40 gig or do they just make on model for the fourth gen....any info would rock

This case is made by XSKN, and can be purchased at:
http://www.theistore.com/catalog.html

I am ordering one today myself for my new 40G pod.

You might get a better price by getting it directly from Lajo's site, though.