I picked up the contour showcase, assuming that I'd like it as much as I liked the showcase I bought for my 5G. Honestly, I feel like it's not as good for the touch. In particular, the single, super long sliding piece of plastic for 'unlocking' the case and letting it come open is just perfectly so that my hand unlatches it when I hold it in my left hand. It unlatches really easily. The pair of latches on the 5G case was much more secure.
Plus, as someone noted, these kinds of cases really do a number on the tactile feel of holding the touch in your hand. I hadn't expected that to bother me as much as it seems to. Quandary: Protection vs. aesthetic experience...