I managed to do it... I used git checkout <HASH> to get that previous version pointed out by TheHitcher, then I applied the patch using the git command, and did everything else as specified. I copied the modules by hand not know exactly what I was doing, using stskeeps' Meego image, and it booted.

Touchscreen worked just fine, I read in many places that could be an issue, but I am able to use Xfce. It's only a pity I have no keyboard to test anything else!