Just a day after Nokia confirmed that we will see a mainstream touchscreen device from the company launch before the end of the year, the much-rumoured "Tube" has made another appearance.

The XpressMusic 5800 - leaked previously on several occassions now under the XpressMedia sub-brand - has appeared in an advert run by a German mobile phone shop.

On the same poster are handsets recently launched, leading to speculation that it won't be long before the mid-range music-focussed mobile sees an official announcement. We will keep you informed.