WaterField Designs has announced two new cases for the iPod touch, iPod classic, and third-generation iPod nano. The iPod Smart Case ($29-$39) features a multi-layered padding system that combines a high-impact, rigid insert with a scratch-free Ultrasuede liner. It comes in six colors, three different styles to offer various carrying options — attach it to a strap, clip it on a belt, or slip it in a pocket — and three custom sizes to fit the new iPod touch, classic and 3G nano. It will be available Sept. 30. The iPod Suede Jacket is a basic Ultrasuede case that offers minimalist protection and the ability to double as a screen cleaner. It is available now in four sizes for the iPod touch, iPod classic, 3G iPod nano , and iPod shuffle, and sells for $5-$9. In addition, the company points out that its iPod Travel Case, designed to carry the iPod and all accessories, is available in three sizes — small medium, and large — and is compatible with the new family of iPods.