OK, then what is the photo's folder for in icloud drive? I figured it was for this. I have had a folder labeled as photos in icloud drive since the beta appeared and I added a photo then. I don't have any option to enable icloud photo library yet, presumably tomorrow.
Your correct, they used to have a Photo folder at iCloud Drive, but for me for a example it's gone.
No folder, I do access the Photo's trough beta.icloud.com
Sadly I hope they fix the following issues, if they hav'nt fixed it tomorrow after public release of 8.1 'll go back to dropbox.
1. You can't delete a picture from your phone without deleting it on iCloud.
As I only have 16GB iPhone 5s I did purchase 20GB of space at iCloud to keep all of my photo's there without needing to use my 16GB on the phone.
2. It seems that you can't "sync" it from iPhone -> iCloud Photo Library -> iPad.
It just works from one device to iCloud Photo Library and then it merge there and every picture are there, it don't sync trough devices for some reason.