Wow, OS2006 is a big improvement! Spent the whole day installing various software packages and playing with them. Xchat is now usable (wifi connection loss bug seems to be gone), PDF reader is much faster, application menus are configurable, apt-get rules. The audio player wants to get online for obscure reasons when I just want to listen to some mp3 from my playlist. (This last point is not an improvement.)
Set up scratchbox for Maemo 2.0. Managed to port gweather-maemo to the new OS version. Happy.
Discovered that my old charger is nearly broken. Bought a random compatible charger (the local vendor did not have an official one). Noticed that it is not quite compatible (4.5-10 V and max 600 mA output instead of 5 V and 890 mA). Not happy.