Last week rumours of an iPhone nano resurfaced after case manufacturer XSKN posted a rendering stood next to a standard iPhone. Today the same manufacturer has put references to the iPhone nano on its website.
The link on the website does not yet offer any products but XSKN has in the past revealed iPod specifications ahead of official announcements from Apple.
Currently it is unknown what the status of the iPhone nano is, if it exists at all. In addition Mac Rumors is reporting that "Apple's initial plans for Macworld may have been delayed. So, even if an iPhone Nano was originally in the works, we're not sure when we'd actually see one."