I installed Ubuntu 9.10 on our Lenovo Ideapad S10 (which was running
8.10), and I also got to install it on a friend's new S10-2. There's
little to report in either case.
The installation itself was perfectly ordinary.
When I booted up the first time, the Broadcom BCM4312 wireless interface
didn't work. I knew it used wl.o under 8.10, but that file
was nowhere to be found. A bit of research (which I really should have
done before I reinstalled) showed that I needed to install the
dkms and bcmwl-kernel-source packages, and the
wireless interface worked fine thereafter. I was lucky to have no other
hardware problems.
That apart, my first impressions are all positive. 9.10 really does boot
up faster (35s vs. 55s for 8.10). The interface is also noticeably more
responsive, but too many things have changed for me to try to isolate a
cause. Everything seems to work nicely, without any need for tweaking.
Suspend and resume continue to work correctly.
Upgrading also fixed the few niggling hardware-related problems we had.
Tapping and scrolling with the touchpad works much better, and the audio
problems are gone, including the excessive feedback (which I thought was
due to a faulty microphone). Recording through the internal microphone
works fine, and the built-in speakers are no longer inaudible. I don't
know yet what effect (if any) the upgrade has had on battery life.
I'm very happy so far.