Sold in two two-toned versions, CoverCase's new Dual SlimSkin Silicon Case with Armband ($13) is a budget-priced third-generation iPod nano rubber case with a detachable armband, cleaning cloth, and film screen protector. A black and gray version is available, as is a pink version, both with color-matched, adjustable armbands that take inspiration from Apple's perforated, Vulcanized neoprene design. The cases are inexpensive and look it; they're "you…
