Lisa Gade tests out the HP Active Stylus digital pen with the HP Spectre x360 Windows 8.1 convertible Ultrabook. The Spectre X360 is compatible with the same pen that HP offers as an optional accessory for the HP Split x2, though they don’t publicize this feature. We test the pen, which uses Synaptics technology, with OneNote (desktop and Metro), Photoshop CC, ArtRage 4.5 and Sketchbook Pro. The X360 and pen offer 255 levels of pressure sensitivity and palm rejection. The Spectre X360 is a 13.3” laptop with a 360 degree hinge, sleek aluminum casing and Intel 5th generation Broadwell Core i5 and i7 CPUs. Watch our video review of it here:    • HP Spectre x360 Review   ** Read our full written review here: http://www.mobiletechreview.com/noteb...