>>>> So it will definitely be a (replaceable) plugin card (e.g. MXM) [...]?

>>> I'm one of the people pushing for AMD gpus, while some others would prefer Nvidia.

>> The current specs say "VIDEO: Radeon HD" anyway, implying that to be the default.

> "Yes we still planning on using a MXM based video board". [...] The posts that
> have mentioned Radeon HD graphics are no doubt related to the boards that will
> be incorporated into the prototypes.

I see no reason why the "Radeon HD" spec wouldn't also refer to the default MXM card of the non-prototype boards. Or do you mean the prototype boards will have onboard GPU instead of MXM slot?

> I've also seen comments from other mentioning the idea of releasing the details of
> the hardware design after completion of the prototypes. I don't know that the issue
> has been decided yet [...]. I, myself, could see the release of the schematic info.

Isn't releasing the details of the hardware design mandatory to qualify as open source hardware, be it after completion of phase #2, phase #3 or phase #5?