1. They give no mention of how this handles existing installs of Google Drive or Google Photos Backup.
2. The application has the exact same name for Google Photos and Google Drive. Do I need to download and install both? I tried that, but couldn't move the second to my applications directory without overwriting the first. Looking at the downloads they're the same size, so I'm guessing they're the same, but that begs the question, why the two download links in the blog?
3. Where will photos be saved? I save mine in Google Drive, and choose the option to sync to Google Photos. Will they be stored directly on Google Photos? Because I'd rather keep them on Drive.
I'm still a huge fan of both products, and hope that this cleans up a number of integration issues between both services, but this announcement feels like it wasn't thought through at all.