Ok here's what I have on Froyo going to Spare Parts:
. Battery Information: useless
- Usage stats: it's an poorly formated list of apps with the launch count and CPU time
- Battery History: a list of graphable buttons with following stats: Other usage, Partial Wake Usage, Sensor Usage, GPD Usage, Network Usage, CPU Usage. Each shows a list of apps/processes with blue/red bars.
Maybe you are talking about "Other usages". Here I see % running, %screen on, %wifi on
Any chance you can dig that out of wherever it is to display in your app? Certainly, running time, being the most important.