Thin Client connection brokering (VDI)

[Bob]

Hi,

I'm exploring thin client connections to oVirt in a VDI context, and 
after having read the overviews I've found I still have some questions, 
and hope you can point me to the right place for more information.

It appears that oVirt supports a VDI model where thin client sessions 
can be load balanced to a set of VMs, or directed to VMs with existing 
sessions for the user. Is this correct?

At what level of the architecture does the connection brokering take 
place (i.e. where is it determined which VM a thin client should be 
connected to, and what pieces of the system are involved)? Can it work 
for both VNC and SPICE based clients?

If a developer were interested in adding support for connection 
brokering of new thin client protocols, where would they start looking?

Pointers to relevant documentation or mailing lists would be much 
appreciated. Is this more of an engine or a node question (or does it 
span both)?

Thanks!

-Bob Doolittle