I did a full wipe (separate wipe data/cache/system) then reinstall 0.7, I could make the weather work finally in the lockscreen, updated to 0.10 then...updated to 1.0.1 (not the full rom) and worked
So I can say you can upgrade from 0.10 to 1.0.1 with just the upgrade and not the whole rom

Battery Calibration
[APP] by marosige
version 1.2

Requirements: Android 2.1+ | Root permissions

Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, thus any fake information from the previous ROM is removed.
It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.

The app shows your actual battery status, and only allows you to start the calibration (i.e. removes the file) when it's fully charged, unless you force earlier calibration.
The voltage meter can be useful too. Full charge is around 4200mV.
There is an option to beep when 100% is reached so you don't have to closley follow the changes.



DOWNLOAD
Those who had 1.1 or lower installed: you must uninstall before installing from the Market, or else it will say installation unsuccessful, package not signed.

I tried this and it WORKS! (Also works on HTC HD2 Nand version.)
I'm not responsible for any damage or losses of any kind caused by the use or misuse of the program!