The 1005HA is one of the brand new Asus eeePC netbooks, and it is a great little machine — aside from the fact that it comes with Windows XP or a dumbed-down customised Xandros (allegedly — as time goes on, Asus seem to be selling out to Microsoft).
As the 1005HA is pretty new, it has a few odd hardware quirks that won’t be fully supported out of the box until the next release of Ubuntu.
Here I run through what I did to end up with a 100% working install — including all Fn hotkeys. The good news is that it is very easy!
My perfect Ubuntu setup on the 1005HA