Techradar posted a hands-on review on the iPod touch 5th Generation

The poor, neglected iPod touch hasn't been upgraded since late 2010, when the fourth-generation version got a Retina display and the A4 chip that powered the iPhone 4. But when the iPhone 4S came out, Apple did nothing with the iPod touch - they lowered the price a bit, and touted its ability to run iOS 5, but the actual hardware stayed the same. No more. Apple's most popular iPod got a big upgrade at the Sept. 12 event, including the same taller screen as the iPhone 5. Measuring 4 inches diagonally, the screen is 640 pixels wide but now 1136 pixels high, leaving room for an extra row of icons on the home screen. With its 16:9 ratio, you can watch widescreen video without letterboxing. We watched some scenes from The Avengers, and every pixel was used for video, a welcome change for anyone who uses the iPod touch for entertainment.

  Hands-on review: iPod touch 5th Generation