my analysis from PR1.1 to PR1.1.1:



description:

1. yellow lines with pink dots in the middle are the areas where i did different things. ^^

2. areas from left to right:
* idle (wlan on) PR1.1
* short charge and then the software update to PR1.1.1 (high cpu usage -> fast battery draining)
* charging again
* playing halo 3 (on xbox360 - not n900 xD) and listening to music with n900 (battery drains middle-fast)
* charging again
* idle (wlan on) PR1.1.1
* charging (moved over some modded files)
* (no dot - last area) installed desktop execution command widget and played around a bit

3. red lines are tangents (blue dot as tangent point) for PR1.1 (top line) and PR1.1.1 (bottom line) IDLE (wlan on)

overall (for the first few hours after updating) there seem to be some optimizations
(this bug seems to be fixed: https://bugs.maemo.org/show_bug.cgi?id=6615)