PR1.2 is a small, flightless, genetically modified bird, apparently it tastes like chicken but no one can verify this as one has never actually been seen. its kind of like a higgs boson particle thingamybob. at this moment nokia are developing an underground large hildon collider in the hope that PR1.2 will be discovered and shed some light on QT4.6
Simply put necoicould, PR1.2 contains what is called "Qt" version 4.6, which all new software is being coded in. The problem that is started to occur is software development is grinding to a halt because version 4.6 only comes out when PR1.2 comes out. So essentially we cannot move forward with improving N900 software until it's released.
Hence why the anticipation for it's release is so large. There are already applications sitting in the development repository that you are unable to install because the N900 does not have Qt 4.6.
Nonsense, most N900 software is not using Qt at all so there's nothing to stop you from improving it. Go for it.
Secondly, Qt 4.6 has already been available in extras-devel since January or sometime around there... and you can download it since then for any apps which require it, which there are several of. I have it on my N900 right now; you might too.
As far as "All new software is being coded in" Qt 4.6, as wikipedia would say: [citation needed]. I think is a wrong assumption. In fact I would guess that the vast majority of Maemo/N900 developers don't use Qt at all at this point.
