Hello,
i´ve installed OS X 10.6 with Empire EFI 1085.
My Computer:
Mainboard: Zotac ION ITX A
Graphics: Nvidia ION (GeForce 9400)
Sound: Realtek ALC662

The Problems:

Graphics are ok, but it could be better.
I´ve installed EFI String for Nvidia.
Now the resultion is perfect (1680x1050), and everything´s a bit faster than before.
Fullscreen videos (safari and firefox, but also quicktime, low quality, should be no problem for 9400) are stumbling
How can I improve fullscreen performance?

Sound works with VoodooHDA, but crackling, especially in fullscreen videos. The Crackle Fix has no effect.
How can I solve this problem?

Add:
Is it possible, that the mainboard will have improved support in the near future?
Who would be responsible for this? Empire EFI? Chameleon?
Is there a fast movement in development?
Is there a list or something like that for hardware support wishes?