Hello.
Here I am posting a link to another topic of mine that is in "RouterOS on RouterBOARD" section:
http://forum.mikrotik.com/viewtopic.php?f=3&t=36245
The idea is to have 3 APs in one box that use the same ethernet which is 100Mbps and is surely enough for 3x802.11g. The processor is also "fast" enough to handle this even in routing mode.
Has anyone managed to make it work with any RouterBOARD/MiniPCI configuration at all and what could be wrong with my setup?