Last week I bought a Lenovo Miix 720, something like a Microsoft Surface, to be more portable when working. Rebelle is running lovely on it, but I've got one rather big issue. I'm using the pen (set to Windows Ink) and have touch on. Zooming, rotating with my vingers works great, but at times my fingers activate the smudge tool and it messes up my drawings. When I put a finger on the screen, the smudge tool gets activated. That is strange, since it should totally ignore my fingers unless I zoom or rotate or activate tools for the pen to use. I wondered if it was my device, but Sketchbook for example totally ignores my fingers and palm, unless I use it to do touch gestures. It doesn't do any drawing function, that's pen only. I can find a pen only setting in Rebelle at all, so I had to switch off touch completely, but that's kind of stupid.... having a device that can use touch features, but not being able to use it because drawing tools are activated by my fingers.
If I set my device to Wacom, it gets worse, then I'm even able to draw with my fingers as well as the pen. When I'm not carefully zooming in or out with my fingers or rotating my canvas, I've got all unwanted paint or lines on my canvas.
I'm not sure if you are aware of these issues, but it's very annoying that there's no pen only feature, restricting all drawing related features to pen only, while leaving zooming, rotating, tool selection and so on open for touch,