At this time of year, most of us will probably have nearly empty wallets - and if not now, then definitely after the January sales - so it's lucky that this new design collaboration also holds a phone...

Launching on the 2nd of January, 2011, this nifty leather wallet and smartphone case has been designed by Japanese design studio Wonderwall for Jam Home Made.

Called the WWMK model, it features just the right mix of luxury (in the form of soft black leather) with the urban cool provided by a nice chunky metal clip.

Click below to shop.