can you shoot me a private message or email and tell me where exactly you got that statement from?
I would also not expect it to be a problem right away and we have anecdotal evidence that it works in general, however it is still not a tested confirmation from our perspective.
please also note that statements about VMWare-type virtualization may be different from those for Xen as VMWare runs an unmodified OS platform.
Cheers,
Florian.