I don't know if this is an OZ problem, but it worked for me under 3.5.2.
I've installed ope-camera () & Mickeyl's sharp-camera-support_2.4.18-rmk7-pxa3-embedix-r4_poodle.ipk from vanille.de. The problems are is that I can't snap images at greater than 320x240 or the image gets repeated/duplicated several times in the file (I can post an example if desired). As well, I can't take more than one picture without manually changing the prefix. The first gets name 'name-1.jpg', but it doesn't create a 'name-2.jpg', etc. If I change the prefix to 'newname' I then will get 'newname-1.jpg', for example.
Anybody else having similar problems? thks