Only three months after debuting the iPhone 3G/3GS version of Play Hello iShoes -- which was late and not quite up to snuff in protection -- Taylor Technologies has returned with Play Hello iShoes for iPhone 4 ($25), a superior sequel. This silicone rubber case once again uses sneakers as a launching point for six colorful iPhone protectors, each packaged with shoelaces that you string up for decoration, and a color-matched string manager. New…