NITDroid is completely on the SD card, it won't mess with your maemo root folders, but it will use the eMMC (MyDocs, 32GB memory) as an "SD card". Try getting 0.0.9 running and when this 0.1.0 comes out you can just format the SD card and copy the 0.1.0 nitdroid files there. I installed Gingerbread on my SD card and I have power kernel too. Try the autoinstaller first and then update to 0.0.9.