If you don't want the original.
I kind of like having a copy of the full sized file; which means I'm going to have to stop relying on Photo Stream when copying pictures to the computer. Not that I do that very often. I usually copy via a cable to Aperture.
I just need to figure out what is eating up space on iPad. I only have about 300 photos and 75 some apps and use about 7 GB. I noticed we do have about 8 or 9 color magazines on there through Nook app. Wonder if they could be the hog?? I use zinio on my photo magazines and think it does pretty good job of saving space. But I remove from iPad once read.
I don't remember if it's been mentioned, but you can see how much storage space each app is taking by going to Settings > General > Usage. The top 10 apps will be shown. You can see the rest by tapping Show all Apps.
Edit: Fixed path to settings.
Oops, that should have been Settings > General > Usage: In case you were getting frustrated looking for it. :o
If you tap on the app it will break it down for you between app size (shown next to the icon) and Documents and Data.
Hold in mind Documents and Data may also contain data essential to the operation of the app, which is why it is almost never empty.
Glad to help.
Glad you asked the question. I hadn't noticed that the Photos actually get broken down into camera roll, albums, and photo stream. Now I know how to answer the question "How much space on my iPad is Photo Stream using?" :D
I'm pretty sure this is new with iOS 6.