I have added an updated version of gnome-extra/hardware-monitor to the tree. I had to remove the ~ppc keyword because libgnomeuimm-2.6.0 and libgnomecanvasmm-2.6.0 aren't keyworded ~ppc. If somebody could keyword those and then keyword hardware-monitor again, it would be appreciated.
Sure, working on it.
Why those KEYWORDS were dropped in the first place I don't know. Perhaps khai could explain why they're completely absent on the version update. Re-keyworded now, hardware-monitor works etc.