iLounge has published what it claims are the dimensions of the new iPod nano and iPod touch which are expected to be released next week at the September 9th Special event.
The diagrams suggest that the iPod nano will return to the longer design of the second-generation model. The diagrams also suggest somewhat of a curved design.
The iPod touch appears to be receiving a similar look to the iPhone 3G, gaining a more tapered design. The diagrams show a slightly thicker iPod touch compared to the current model and external volume controls also appear present.
Separately, iPod case manufacturer XSKN has begun promoting 4th generation iPod nano protection cases.