I just upgraded from a 9000 to a 9700, and I'm enjoying it. The smaller keyboard took me a few days to get the hang of, but as for the rest, I'm really, really impressed. The 9700's screen is physically slightly smaller, but is very sharp. In use, the 9700 feels a lot faster than the 9000, and it doesn't hang or give an hourglass (to any major degree), while the 9000 did so frequently. The additional app space on the 9700 is very welcome; the 9000 with OS 5 barely had enough memory to run. The 9700 also feels more solid (the 9000's back cover was a little flimsy), and the trackpad is far nicer to use than the trackball.