RDP support / poor refresh on Windows Vista/7 images

I realize I may be re/opening a can of worms and there were very good reasons to choose VNC as standard.

However, we have recently started turning on some animated effects for IE, since IE 9 now supports CSS transitions, but I find that I can't really test these with CBT, because the refresh rate is too slow for me to know whether, for example, an element moved into place or jumped into place.

If I hook up one of your VMs to my LogMeIn account -- not something I want to have to do all the time -- performance is more acceptable, or at least enough to know whether effects are happening or not.

I'm sure that if you supported RDP, I would be able to get a proper sense of the feel of our pages. Is there any chance you would ever optionally allow direct RDP to a random port, as you allow direct VNC to a random port? I know all you have to do is set one Registry value in the image to change the listening port -- I know this would entail all kinds of other architectural changes but as far as allowing the VM itself to listen it would be straightforward, no?