https://techcrunch.com/2019/10/02/microsoft-teases-a-dual-screen-surface-set-to-debut-holiday-2020/

Rumored in 2008 and officially canceled two years later, Courier is one of the great “what ifs” of the consumer hardware space. Somewhere out there is an alternative timeline where the dual screen booklet PC preempted the whole two-in-one tablet/PC boom.

In this universe, however, the dual screen PC has been more of a curiosity. A smatter of companies like Lenovo have experimented with the form factor to limited success. At this morning’s Surface event in New York City, however, Microsoft finally got around to planting its flag.