> The Mark 3 was the Micro model (with both FX/GX) that was distributed by the
> Eyetech dealer network. Some developers had Mark 2.(very faulty)

Apparently, the MicroA1-C Mark 2 is called MicroA1-B by some. I never stumbled upon this moniker before.

http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=37872&forum=16&start=140#711743
http://www.amigans.net/modules/xforum/viewtopic.php?post_id=80247#forumpost80247