Rather than running with Nokia's version which is based on a hacked together fork of GTK as well as all the proprietary drivers, along with my own dislike of re-inventing the wheel, Cordia Project has already done a mountain of work and only really stalled when it came to hardware for a tablet.

this, from memory, is running Mer (see what I did there) as it's OS core and had also managed to port gtk3 across, with hildon UI sitting on top.

there are builds for n900 and resolution independant i586 builds available HERE