Tune Belt has once again expanded its line of “Open View” iPod cases and carriers. The latest products include belt carriers for iPod nanos and fifth-generation iPods. Each of the neoprene belts, which allow users to secure their iPod around their waist, feature a clear, protective mylar window that allows for play-through control. The belt for 5G iPods has an extra pocket on the back that holds personal items such as credit cards, keys and money, while the belt for the nano has a space that “perfectly fits the Nike+iPod Sport Kit receiver.” Both belts sell for $20.