Thanx for posting to the blog.
Seems like there is a way to do this, though I can't recall off the top of my head. We'll go into the lab and see what we can figure out for you early next week.
OK we did some digging.
I am assuming you have the VF assigned to a VM. In this case you can, from the VM itself use the vconfig utility to assign up to 63 VLAN tags to the VF's before you add them to the bond.
From the VMM however you can only assign a single VLAN tag to a VF.
I hope this helps,