Yes, this is correct. Now that Leopard is released, Juniper Dev/QA is finalizing the support for the GA Leopard code. We have been testing with Leopard (with the help of the Apple Dev team) for some time now and will soon be launching a new release of IVE code which supports Mac OS Leopard.
For those who can't wait, there is a work-around available by adding a new symlink for a missing shared SSL library, which Leopard did not ship with, which has proven to resolve issues with NC on existing IVE code.