I tried to find this in the forums, but no luck.
I just had a user that has an iPad and wants to upload photos. Since I don't own an iPad, I can't explain how to do it, but he tells me there is no folder structure with an iPad, so he wanted to know if he can upload by sending an email.
I went into admin options and saw this
Mobile Phone Integration: EMail address for images
EMail address users should send their images to
we have it set for our admin@____.com
but I would think that email just comes to us and doesn't upload his photo.