Will Google+ Photos automatically migrate to the new Google Photos? Today in their Keynote at Google I/O, Google announced their new Photos app that does most of what they did with my photos when they auto-uploaded to Google+, but with a few and some significant additions and differences.

My devices are currently uploading to the new Google Photos but my question is, since my pictures are/were already being auto-uploaded to Google+ Auto-Backup already, will those show up in Photos as well? Or am I starting out fresh?
I just installed the app and I have access to all my G+ photos, plus the ones I have in Google Drive and a few scattered ones that were only on my phone.