Rosenberg claims that users of their prototype "FEELit" mouse experience an 88% speed increase over a stock mouse on a standard productivity test.

FORBES: Desktop fingerprints

To test its productivity chops we opted to go for the more tactile Type Cover than the Touch Cover we focused on in the Surface RT review, making this feel more like a laptop.

ENGADGET: Microsoft Surface Pro review

For what it's worth, there is a fascinating test case of this spirit of forgiveness for errors made to improve the productivity of the UK: the botched awarding of the West Coast Mainline to FirstGroup.

BBC: Cameron: No more dotting of 'i��s'