Elecraft killer? In what way? We don't know it's cost or performance yet, so really impossible to compare. Weight and power consumption are two big issues with portable QRP rigs, and an LCD display is going to draw less than a full color display. Plus, LCD's do well in direct sunlight. The KX3, for example, draws something like 150-190mA on receive. I bet this will draw several times that, if not more. We'll have to see.