I love the inclusion of the Rwandan proverb translated into Gallifreyan. It's a really cool way to portray homage to the Doctor's character while also including non-Western influences.
As to the design of the screwdriver itself, I quite miss the old cylindrical design. I'm sure it'll be fine in action though.
Should be interesting to see how this is used. He made a point to show it has a USB type connection. You just know this will be something they have to show off.