I used syphon a few times before moving over to W7 and it definitely is something to be jealous of. It’s awesome, works easily, and the hit on the machine isn’t the worst thing ever. I read somewhere that we may be close with some DirectX stuff, but I didn’t look further into it.
The recent iOS6 maps debacle confirms the move to W7. I’m also having a love affair with MS One Note and Outlook!