[PeanutNore]

There's little reason to commit a whole Arduino board to a project when you can easily flash the Arduino bootloader onto an ATMega and embed one in your gadget. I think I own exactly two Arduinos: an UNO SMD edition that I use for flashing bootloaders on ATMegas and programming ATTinys, and a regular UNO that I stuck a ZIF socket on that I use to program ATMegas.