Ask HN: Is Google+ nailing it for Google?

I personally think that Google+ is actually succeeding, if it's perceived as a platform (in progress) and not as a pure social product.

Eg. I login everywhere using Google auth, use GMail, circles (but not for G+), Youtube, Comments (= disquss, but login with G), Android (backups my pictures, organize my contacts, ...), Google Drive, ...

What do you think?