Following last week’s appearance of the first third-party native iPhone application, developers have continued to pursue the building of new, unsanctioned programs for the device. Erica Sadun of TUAW has built both a voice recording app, VRecord, and a screenshot utility for the iPhone, and a native NES emulator, iphonenes, has appeared on Google Code. A video of the emulator in action can be found on YouTube. Unfortunately for most iPhone owners,…