We've liked Core Cases' Aluminum Sliders from the first day they were introduced for earlier iPods; now the company has released versions for the third-generation iPod nano ($20), iPod touch ($25), and iPhone ($30). Each version is extremely slim thanks to a two-piece sliding design that needs no hinge, using anodized aluminum on the outside and foam padding on the inside. The iPod nano version comes in four colors - pink, red, silver and black -…
