Yes I know I thought about it too but I never liked the idea that sending a message would create a method or a class. May be I'm too old fashioned :)
Is there another way to do it?
I believe Stef was talking about:
Package MyNewPackage
vs.
Package declarePackage: #MyNewPackage
Both are plain Smalltalk expressions. But the intention behind the first one is not to send the message MyNewPackage to the object Package.
cheers, Alexandre