Could this be the Nokia 5900 XpressMusic?This article contains unofficial information.
Mind you that another webpage refers to the device as the Nokia 5530 XpressMusic and not as the successor of the highly acclaimed Nokia 5800 XpressMusic. This source also talks about a 2.9-inch display and the same old 3.2-megapixel camera.
To make things even more complicated, we need to say that these images may be revealing yet another ingenious Chinese knock-off. Post your thoughts or comments below. *Update*: As our reader mbelm64693 points out, the T-FLASH label on thememory card flap looks quite weird for a genuine Nokia device.
source: PConline (translated) and iDNES (translated)