PCoIP and USB redirection are not available with the open client due
to their current licensing. They are available installed on partner
thin clients, and I believe at lease one commercial distro.
These are tracked here:
USB: http://code.google.com/p/vmware-view-open-client/issues/detail?id=6
PCOIP: http://code.google.com/p/vmware-view-open-client/issues/detail?id=47
I wish I had any sort of update on this, but unfortunately I do not.
Thanks,
-- jacob