I just installed WS 11 trial version (to see what it looks like). The reason being I've been running 6.5 (sigh) and need to be able to create VM's with more than dual core.
Installed to laptop with i7, four cores/CPU's.
Created a VM. Selected four cores.
Got warning telling me the Host system does not have four cores.
Further interesting note: I originally tried Oracle VBox (free) and ran into exactly the same issue. Figured it was a bug in VBox and since it was free I wasn't going to get any help on it so I jumped to VMWare 11.
Same problem. Granted, VBox is clearly a pretty close copy of VMWare....