I was able to pair it with my PlayBook, and got a little functional mouse cursor on the screen! (berryreview.com)
We fixed an issue where the insertion point mouse cursor appeared white for some Insiders, making it invisible against the white background of many text boxes. (blogs.windows.com)
Problems in mouse cursor movement on your 10 / 8/7 computer can be a big nuisance. (thewindowsclub.com)