Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5)
I thought you could move them from the photo stream to an actual folder. And then once that occurs the pics appear in that folder or the new folder is created on the iPhone and the photos disappear from the camera roll.
I thought that how it worked but I don't know that for sure since I don't have ios5 yet. Waiting for 4S.