I need to say, that Cameraplus is much better than stock camera application in terms of resulting file quality. Not as good as "a better camera", it's far behind, but it's much better than stock app. That's why I would like it to work. (: It does not since the latest os upgrade.
I don't think raw data from the sensor does not need processing. It needs to be processed and saved as .dng (adobe dng is open format). FCamera for n900 and Leicas also use that file format. Believe me, I could get uncomparably better photos from n900 produced raw images than i could with jpegs. I believe raw photos are essential feature if you can implement it, of course.