I think this is an amazing device. It will take a bit of time, but if they do offer it either/or as a mouse replacement with new systems, it might take off faster. There have been times when I use my MBP that i with my desktop did as well, like pinch/zoom, scroll, forward and back swiping.
That being said, here's a couple things they need to have done better:
1. click and drag, still better with a mouse
2. highlighting text, much faster with a mouse
3. not a...