Soldato
Not something I've really looked into but IIRC most consumer GPUs can only do 10bit over display port (which these monitors don't have an input for) and only very recent GPUs can actually do 10bit anyhow - for example nVidias 200 series have hardware support for it in the spec but not enabled by many vendors for instance.
Indeed. Also with the level of software support at the moment it really isn't worth worrying/thinking about.