The idea of logging everything from CPU usage to Memory is brilliant ...
I was thinking of using similar graphs for power consuption as well. Wither its battery or not, I think it would be a great idea to see how much a computer uses energy. Then users can add "billing values" to see how much their computers spend for every usage.
This could also be used for laptops as well. When you run on battery mode, Norton shows pop-ups whenever it detects certain applications over-consuming power and maybe they are better to be shut-down for power-saving.
I think this might inspire people to shut down their computers more often ... to save energy and money ...
Perhaps this is another type of security...