I think the only phones with a decent camera is the SE K800i, k810i and k850i
these all have xenon flashes and give reasonable quality. From what I have seen from the Nokias the Zeiss lens is just a marketing gimmick as the quality is poor. It is down mainly to the tiny optics and small sensor which means more noise. The more pixels they cram onto the small sensor means less surface area per pixel and less light per pixel and more noise overall. I think it's a phone not a camera the 2Mp camera on the iPhone is suitable as a camera on a phone for uploading pics to facebook etc. For acceptable quality I use my DSLR but maybe I'm a bit fussy about image quality.