Microsoft today announced a new version of Surface Book named Surface Book i7. It is the most powerful Surface Book yet. The new Surface Book i7 has been redesigned from the inside out with twice the graphics performance and 30% more battery life. This Surface Book i7 will offer you insane 16-hour battery life! The new Surface Book will be available in November, but you can pre-order it from Microsoft Store today starting at $2,399. It will be shipping next month.