What is the Harmony Encore?   Hamony Encore is a new, feature-packed Harmony cartrdge for the Atari 2600. It is fully reverse-compatible with Harmony but offers 512k of ROM or RAM and 1M of EEPROM storage. It was designed with the goal that it will run fully 100% of Atari 2600 games, old and new.   Hamony Encore's hardware is finished and the pre-production versions will have the same capabilities as upcoming production versions, as they will use the same circuit boards and the same chips.