Three suggestions:

Goal3: provide a sane building environment to be able for developers to build against wheezy

Goal4: (after goal3) create a maemo-reloaded autobuilder and extras - they would benefit from the newer compiler and newer libs (if statically linked) plus community components which need e.g. libc6 2.10

Goal5: (somewhere inbetween) integrate with CSSU (its qt 4.7.4 and maemo-specific stuff)