If a third-party app needs to use the access to our "Photos", like WhatsApp, iPhone only shows up the photo albums... So, all of those pictures inside the 'Collections' won't be available, unless we create an album with everything inside. The thing is, everytime you take a picture, you'll need to add to that album to make it available for other apps. That is so not handy.
What's the point of "Recent photos"?
What's the point of "Deleted photos"? It will only take space on the device, if you delete something you expect it to be gone and release space for other stuff. I know that sometimes we delete stuff by mistake and I saw the "30 days automatic delete" in that album, maybe would be nice to select how many days or hours we want them there.
Please Apple. Bring Camera Roll back. Everyone is asking for it and has been just a few hours since the launch and people are asking for that since beta 1. It made things so much easier...