For a company that puts the phrase "design is improvement" all over its new products and packaging, Elago has a lot of designing left to do before some of its new products become impressive. The company's new S4 Glide ($30) is the best of the bunch here, a glossy case with two different-colored slide-off bottoms that you can flip between for a change of style, packaged with two separate glass film covers and a microfiber cleaning cloth. S4 Stand ($10)…
