The AP114 also works as a portable out-of-system programmer for 8-pin EEPROM and SPI Flash devices, with a built in power supply from 1.8 to 3.3V. Supported by the ApPC (Atomic Programming Center), ...

[Minifloat] is using his TI Launchpad development board as an In-System Programmer for AVR chips (translated). There are a ton of homebrew AVR programmers out there, and using an Arduino for ISP is… ...