indicator-power-service is a lightly busy all the time

In a vain attempt to reduce power on these phone devices I noticed that indicator-power-service is using just under 1% of one CPU all the time.

 CPU usage:
  PID Process USR% SYS% TOTAL%
  1358 indicator-power-serv 0.05 0.04 0.08 (very light load)

It seems to be waiting on poll() on a couple of threads which cumulatively add up to about 1.68 wakeups a second over a 1 hour analysis:

Top polling system calls:

PID
  1369 indicator-power-serv poll 1.3462 polls/sec
  1358 indicator-power-serv poll 0.3376 polls/sec
 Total 1.6838 polls/sec

This contributes to a bunch of context switching by these threads:

Context Switches:
  PID Process Voluntary Involuntary Total
                             Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
  1369 indicator-power-serv 10.75 0.15 10.90 (moderate)
  1358 indicator-power-serv 3.53 0.07 3.60 (low)
  1372 indicator-power-serv 0.00 0.00 0.00 (idle)
 Total 14.29 0.22 14.50

[ See the attached log, launchpad formatting sucks ]

I also observed a couple of brk() calls, and a small amount of heap growth which may indicate it has a small memory leak, but I am speculating on this.

Attached is a full report from a 1 hour of monitoring indicator-power-service for reference.