I did some testing. Made a clean reflash and can confirm what was said. If someone wants a fast, and saving battery N900 just launch DSP profile and that is it. Few months ago I've tested battery patch and comparing it with DPS from Freemangordon it just doesn't work.Batterygraph shows that at night the phone nearly doesn't use cpu. With BP it used a lot more. One other important thing. It is good to have a clean install with just the stuff you use. Unused crap made my phone act strange. Further more all the apps for battery stats showing, cpu saving, overclocking etc. didn't help. I can not explain it. Without them and just with DSP loaded the usage at night is close to zero.