What was it until now?
I saw this posted on another blog. It appears they now are allowing you to upload your pictures and video in original quality. They were giving unlimited but they were compressing the file a bit. The thing is when I set it up and I clicked to upload in original quality it told me I had 0gb of storage. It is still uploading the pics it's a little strange.
ETA The high resolution is unlimited. So videos in 1080p and pics 16mp are free. Original size uploads is only 15gb. I guess if your using it to only upload your phone pics it's convenient.