Fed up with ugly routers and clunky hard drives, a growing number of consumers are looking for well-designed gadgets that complement decor instead of cluttering desktops and clashing with furniture. Many credit Apple’s iPhone, with its strikingly simple forms, for raising the bar on expectations for good design in consumer electronics. And while art and design professionals say that gadgets like mobile phones and personal computers are becoming increasingly well-designed, they also say many electronic products still need to work on their appearance.