More evidence is appearing that supports the rumored taller iPod Nano design with a curved screen. Case designs (seen above) at Alibaba (via Engadget) depict new cases for an iPod Nano 4G. The 4th generation iPod Nano has been rumored to have a taller design with widescreen to allow for video playback. The rumor was first reported in July, with additional claims a few days ago from Kevin Rose.

iPod Nano Case Leaks, Next iPod Touch to Have GPS