We’re working on the ability to share a file or folder with a specific Microsoft Account.
FYI I've updated the title to reflect that this request is scoped to OneDrive Personal.
Note that OneDrive for Business already supports secure sharing both inside and outside of an Office 365 organization.
We’re interested in improving the experience for users of camera upload to OneDrive. Looking at better ways to organize and structure the files is an important aspect. No other updates right now.
JReese: You can already select the "root" location of the camera roll by simply moving the folder. You can move the folder using the OneDrive app on your phone, the OneDrive.com website, or the sync'ed copy on your PC. OneDrive treats this folder specially and can track when it's been moved or renamed. Just be sure not to copy it or move it outside of the OneDrive sync'ed folder.