VMWare beta 5.0 is now publicly available at: http://www.vmware.com/products/desktop/ws5_beta.html
So far QNX6 and QNX4 work just like before (starting floppy driver still crashes the VM, which VMWare is working on.)
It does seems a tad faster, but that is just a first impression.
Virtual machine config need to be converted from 4 to 5 and cannot be converted back.
Rick's vmtool and vmtoold are compatible although I didn't test every feature.