with the release of the arduino duemilanove, adafruit is trying to shift out some old stock arduino diecimila by offering 10% off. [amk] noted that the new duemilanove is not so much an upgrade as an arduino with a new hat. the only changes were autoselecting power and a cutable reset line. the best part about the adafruit sale is they’re offering atmega328s preloaded with the arduino bootloader as a $5 upgrade. the atmega328 gives you twice the flash memory, twice the ram, and twice the eeprom than the original atmega168.