We've got a good few updates rolling in on the Galaxy Note 10.1 front today. For starters, Samsung has announced that the S Pen equipped slate will available globally from August in WiFi and 3G varieties, with an LTE version coming later in the year. The press release and spec sheet after the break also confirm that the Note 10.1 will indeed possess a quad-core Exynos processor (alongside a 2GB dose of RAM), rather than the dual-core engine seen in our initial hands-on -- although we'd already gleaned that much from retailer listings. Finally, there's now an official video on YouTube showing off the tablet's interface, including a multi-screen function to make use of that stylus. Samsung's definitely pushing the productivity angle here, with the S Note / S Pen combo looking more like a publishing program than a doodle board. A sizeable and movable keyboard is also detailed, which should address the problem of landscape keys devouring screen space. Whether the UI runs on the new processor as swiftly and smoothly as the video suggests is unknown, but we'll sort the spin from the truth in our review coming very soon.