Working with the recently-announced API (https://developers.google.com/photos/), I'm not seeing 'isWritable' in any album returned by the v1/albums endpoint, including albums created by my app.
I'm using the "https://www.googleapis.com/auth/photoslibrary" scope, which both the documentation and the consent page indicate should allow uploads, so I'd expect isWritable=true for all the albums.
Can anyone suggest what I might be missing? Thanks.