Scratchbox instalado!!!

Nada como um howto http://www.ptlug.org/wiki/Howto_Installing_Maemo_SDK_4

IMPORTANT! Please read this.

You now have the maemo 4.0.1 chinook installed on your computer.
You can now start your maemo SDK session with /scratchbox/login and
then select your target with 'sb-conf select CHINOOK_ARMEL' for the
armel target or 'sb-conf select CHINOOK_X86' for the i386 target.

If you have any problems with targets' package databases, you can try
running 'fakeroot apt-get -f install' on your scratchbox target.
This command will try to fix any problems with the package database.

Happy hacking!