Microsoft's new Surface Book with Performance Base is now available at Microsoft Stores and select Best Buy locations in the US and Canada. Microsoft redesigned the Surface Book from the inside out to deliver twice the graphics processing power and 16 hours of battery life into the same sleek form factor - that’s 60% more battery life than the new MacBook Pro 13".

To push this kind of power through the device Microsoft overhauled the thermal system and added advanced cooling features to optimize the 6th Generation Intel Core i7 processors and an NVIDIA GeForce GPU.

A couple weeks ago Microsoft announced an offer to invite current Mac users to trade-up to a Surface Book or Surface Pro 4. Microsoft says that it had "a great response" to the offer and thus, the company decided to extend it through November 23rd.

Today, Microsoft is also announcing the availability of the Surface Dial in the US. This accessory can be a powerful tool to aid and augment your creative process.

The Dial integrates with Windows 10 Global Controls & delivers a set of unique experiences such as app-specific, contextually aware toolbars.