In a word yes, use Zenith432's latest Unlocker which resolves the server issue in Fusion 4, and you will be able to install the client version of OS X 10.6 "Snow", have a look at the following topic for all the relevant links:
Thanks MSoK. Can I please confirm that it is possible with this tool to do: (in this order?)
Buy Mac mini with Lion preinstalled.
Install VMware Fusion 4 (download it, etc).
Apply patch from Zenith.
Purchase SL client DVD and create VM somehow (do I follow the normal VMWare instructions as if installing SLserver? - I've not ever fried to run/make a VM before.).
Is that the correct workflow?
Will it "just work"?
I'm about to pull the trigger on a new MM, but would like to know that the Rosetta apps I need will still run.
Finally: hats off to you chaps for this ongoing effort.