Voice recorder technology first appeared on iPods back in 2003, when Belkin released the original Voice Recorder for iPod. Since then, additional full-sized iPod and nano models have offered basic voice recording capabilities, using software that Apple included in the devices’ firmware. All you needed was one of several microphone-laden accessories from Belkin, Griffin, XtremeMac, or others. Then something changed: the iPhone came with a built-in…