Seconded, remaining focused on the goal here (create a beautiful modern keyboard slider device) is already tough enough without adding in extra compromises to get full mainline compatibility.

Remember that there exists a lot of people who want such an Android phone, and aren't really interested in mainline linux compatibility.

For people who want that kind of thing, there is neo900 and purism device projects which they may already be a part of further diluting the possible backers for this device.