Rumoured features of the new Surface Pen include a u-shaped clip with varying conductivity along its length, so it can double as a scroll wheel. Using just finger motions, you can change pages and zoom in and out using your finger.
Microsoft’s patent titled ‘Active Stylus Motion Vector’ was published by USPTO back in February, which describes improvements in accuracy compared to previous models. The improvement in accuracy is due to utilisation of motion vectors exactly where the stylus is projected.
The Surface Pen, unfortunately, won’t be included with the Surface Pro 7, but will be sold separately. We’ll see the official reveal at Microsoft’s Fall event on October 2nd.