I like the idea behind "flow" but the execution could be so much better with improved software. I have an MX keys keyboard, and instead of dragging my mouse to the edge of a monitor to switch devices, it would be much more user friendly if I could just click the "quick switch" button on the keyboard and "take the mouse with me" to that device. Also maintain the keyboard sharing/etc. Would be a minor software change that would really up the usability and usefulness.