This one is only for N900 experiencing the hildon-desktop bug, where it -absolutely not explainable/understandable- consumes about 5% or more of CPU continuously (hereby raising CPU of Xorg). So you experience a battery drain, but do not notify any other irregularities (everything works as normal).

I have also included hildon-home to be checked, but I did not experience that it helped me with "hanging of hildon-home".
But maybe it helps sixwheeledbeast here.