While this is a good case for prioritization, I would argue that Google has made a mistake by allowing the fundamental interaction model of the phone to suffer

While this is a good case for prioritization, I would argue that Google has made a mistake by allowing the fundamental interaction model of the phone to suffer from unnecessarily poor performance, either by taking less-than-full advantage of the GPU or (less likely?) not dealing with the problem of “heavy garbage collection” that is cited by the first project member to respond on the linked thread. Copy and paste functionality is nice, but smooth-as-butter scrolling and near-instant responsiveness, a la iPhone, (or lack thereof) arguably define the experience.