I’m particularly surprised that there hasn’t been a resurgence in this area given the user behavior these days of Time Shifting & Reading paired with Device Preference By Activity. Specifically, the habit of doing some things on a tablet in certain (later) context rather than right now on full-size computer or on phone. I’ve seen this most often with longer reading and with contemplative tasks (e.g. weekly reviews in OmniFocus or similar routines of pulling back to organize and plan).