Finally got my Via Epia M10000 yesterday ( some things went wrong earlier ) it's not as quiet as I hoped but it is running the Marine Aquarium and it does look smooth enough: I get over 50 fps with 7 fish at 1024 x 768.
Compared to my good old Athlon it's quite slow but at least I can endure the noise this machine is making ( and I will try to bring it down further ) and my wife was getting cranky cause I've been stealing her laptop the last few weeks
So if anyone was thinking about buying one of these miniature motherboards but wondering if it would run Marine Aquarium: it does.