Back and forth and back again

Nature is running a story on some computer scientists from NZ who have redesigned the back button. The new design records all the pages you visit in the chronological order not just the pages that you click through.

The way I understand it is; if you click through a bunch of pages then use the back button to jump back 5 and carry on, a conventional browser would lose the pages before you used the back button. The new design would keep a record of all the pages in order. This seems to be a smart move but how users would react to it has yet to be seen, I would like to see trials other than the ones conducted by Cockburn et al.