I have the XGamestation plus the Hydra system. They are fun to tinker with and write some simple code. They have their own forums if you are interested in asking questions and exploring their wonders. Andre LaMothe is about to bring to market his latest gizmo the XGS 6502 system, which is on the level of an Atari 800. Same type of learn ware as the XGamestation and Hryda, with plenty of ports and plug-ins to toy with. Check it out......
Mike