Palm OS
Descended from Copilot, Palm OS Emulator is used for writing, testing, and debugging Palm OS applications. Palm OS Emulator emulates Motorola 68000-class devices and has intimate knowledge of Palm OS's inner working, allowing for the close monitoring of correct application operation. Unlike Xcopilot (another descendant of Copilot), Palm OS Emulator will not boot uClinux. By using "skin" files, Palm OS Emulator could very closely mimic the appearance of many models of Palm handheld.