On the world upside down--again

The link is to a blog about a conference; "Workshop on the Impacts of Pen based Technology in Education". Naively I thought we knew most of what there is to know about the use of pens in education; granted they only really superseded slates (oh! perhaps that is what they mean by "tablets") and styluses in primary schools early in the last century, but if you count quills, they have been around in schools for hundreds of years...