The story is very simple - some iPhone and iPod case manufacturer allowed for a new category, namely "iPhone Nano," to appear on its website. The best part of it is that, once you enter that category, you'll find yourself facing 17 silicone cases for the iPhone nano... or that's what should happen, since nothing loads here, anyway, but the imminence of a new product remains.
On the other hand, this could also be a big mistake from those at XSKN, but I don't think so. After all, a bunch of sources - and some of them are pretty reliable, claim that some people even managed to see the iPhone Nano. Nevertheless, most iPhone Nano pictures I found on the web seem to be fakes, or unconfirmed spy shots, so the big question remains: when will we get the iPhone Nano, if that's ever going to happen?