I already got USB audio working on my docking station.
The next steps are figuring out the remaining problems with ACPI and i2c_hid, and then it would be nice to have intel_extreme do dual displays support finally (for which I have to start with more i2c: figuring out why the DDC over DisplayPort to DVI adapter is not working…).
Other things that would be nice are eMMC and DDC/CI, the latter would allow to set the brightness and other parameters for external displays (no need to navigate their built-in On-Screen-Display interface anymore…).
With that done I’d consider support for my current hardware reasonably complete, and I could focus on applications or doing other non-Haiku things for once 