Polycephaly
It's tag team time - Arden Thomas is talking about Polycephaly, and Andreas Hiltner is going to do a demo of using ObjectStudio. Here they are, getting started:
That first link above goes through what Polycephaly is - a way to use multiple Smalltalk images to take advantage of multi-core systems - I'm not going to go into detail here.
Update: Speaking of Polycephaly, Runar Jordahl has written up his experiences using it.
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