My head's starting to hurt. Is this correct?

1) This app cannot be installed on fremantle by only enabling the extras-devel repository?
2) The scratchbox component of the fremantle SDK that is available from Nokia has incompatible QT libraries with the version of the same OS on the phone?
3) The PR 1.2 firmware that was referenced is only available through an unauthorized "leak" that left Nokia?

I'm asking these questions because I purchased a N900 last week cause I use Debian as my primary OS for my computers. It's rad to have Debian on my phone. But I'm having trouble understanding the Maemo development process. This app was the first step in that confusion.