Now I cannot install the Fremantle toolchain and I have not found any Fremantle target in the 1.1.2 SDK nor have I succeeded to create one.
I am also totally new to all of this, I obtained a N900 for a fair bargain to use as primary phone and I was told it was one of the best phones there was due to its openness (u-boot and developing). It's just a wonderful device. But its support seems to have unconditionally, thoroughly, died at every aspect and everybody moved on it seems.