I hope Apple loses big time
The fact of the matter is that Apple's mechanism for screen sharing is, quite frankly, crap. RDP is infinitely better, for a variety of reasons, the most important of which (IMO) is that the resolution of your display is based on your local client, not the resolution of the mac you're connecting to.
I'd been looking around for an RDP based screen server for Mac, and was disappointed I couldn't find one. Now I know why.