Over time, the artwork in GelaSkins' collection of sticker options for Apple devices just continues to improve in quality and variety, as evidenced in the latest set of GelaSkins for iPhone 4 and iPod touch 4G ($15 each), which arrived here with updated GelaSkins for the iPad. The drill's the same from generation to generation: GelaSkins wraps high-quality art prints around Apple's devices using 3M adhesive material that's capable of being removed…
