Attention to detail lacking. Using a T650, which I have been waiting for years for software that actually makes it usable. Still no match for any Apple product. There is still a huge amount of movement needed before scrolling actually starts (Firefox plugin). So hardly "smooth". More like rather embarrassing. IE is a bit better, but also suffers from the "should I/shouldn't I hesitation". Don't even get me started on trying to use it together with a Logitech mouse...