@Vitalious, technically those are panoramas rather than photosynths. The site hosts both, but currently the mobile apps only create and view panoramas.
Yes, the image in the camera roll is just the flattened projection of the panorama and yes that is what Vitalious (among others) are asking for.
In regards to your statement that, "...you'll soon be able to export your panoramas as Microsoft ICE projects and stitch a flat version by hand.", is this something that you're working on for SynthExport or something that you know that the Photosynth team has coming?
In either scenario, would this apply only to new panoramas or will it also apply to the existing panoramas such as those on Vitalious' profile page?