Some of the iPhone 5's (NASDAQ:AAPL) finer details are getting criticized. Among the issues: 1) The iPhone 5 won't support simultaneous voice and data on Verizon and Sprint's 4G LTE networks, unlike many other LTE phones. 2) A $29 adapter meant to link the iPhone 5's new dock connector with older accessories won't work with some speakers. 3) Until they're rewritten, existing iPhone apps will display black borders on the iPhone 5, due to its larger display and new aspect ratio.