There've been rumours that Apple is planning to launch an iPhone Nano for some time now, often based on wishful thinking rather than hard evidence.

However, the rumour has resurfaced with some backing - a listing on iPhone case maker XSKN's website for iPhone Nano cases.

Now, that may sound tenuous, but as the VentureBeat blog points out, XSKN has twice previously listed cases for unannounced Apple products - the iPhone 3G and iPod Nano - which turned out to be kosher.

It's being speculated that Apple may announce an iPhone Nano during its MacWorld keynote next month, although Apple may prefer to hold it off to a separate event.

Games developers will be keenly following the rumours, though, and wondering whether any iPhone Nano will support gaming - or indeed any apps.