I've been using one of these for a while now PadPivot? - Welcome and although quite a lot of money, it's been great. It can be used on your knee, arm of a chair or on a desk. I had a minor issue with quality when it first arrived, but not only was this sorted straight away, but I have also been sent an additional unit. You just can't beat that kind of customer service. Is anyone else out there using one?