John,
Remeber, one of the most valuable parts of the Commodore assets was a new way of utilizing multiple processors (patent).  As such, I kind of expect that they SHOULD be multi.
Personally, I will buy one if a good multi proc system was released.  Though I would prefer a huge number of cheap 64 Bit MIPS chips (at like $14-30 each, it would only be the mobo that cost).  Maybe like ten.  
-NoTx