The install went OK, didn't need the acpi/pnp boot hacks to get wired ethernet working, the ath5K drivers worked reasonably well (if still a bit slow). Startup and shutdown were snappier than before and the KDE 4.3 3D desktop effects work fast enough (and are better integrated than compiz+KDE 3).
However, there are a couple of show stoppers:
- Suspend and hibernate crash hard (power cycle hard) when there are SD/CF cards inserted. This appears (after a bit of digging) to be the eject action during shutdown. The only fix is to not do this which makes me uneasy about filesystem integrity and breaks automatic remounting on awakening.
- Webcam driver has been dropped as a separate driver pending inclusion in the uvcvideo core drivers - unfortunately this doesn't work yet.