Servus Voxters,

You might want to have a look at the Wiki:
http://wiki.maemo.org/Categoryevelopment

It's a good starting point.

Also, a very good QML tutorial (in German) was posted at meetmeego.de:

1) http://meetmeego.org/2011/08/31/tuto...-der-einstieg/
2) http://meetmeego.org/2011/09/01/tuto...der-qtcreator/
3) http://meetmeego.org/2011/09/13/tuto...qml-verstehen/
4) http://meetmeego.org/2011/09/29/tuto...qml-schreiben/
5) http://meetmeego.org/2011/10/13/tuto...-qtcomponents/
6) http://meetmeego.org/2011/10/28/tuto...states-in-qml/

Have fun.