I saw what you did here, Google! :\
the two new apps look promising...'stage' and 'gallery'
Did you see any details on them? All I could find was the placeholder page for requesting an invite.
just the article on Verge that clued me into the whole thing... http://www.theverge.com/2016/10/26/13418012/google-material-design-stage-gallery-pixate
was unaware of it before reading that....I've been fascinated by Material design for a while now, and hadn't known they were working on any further design apps like this... so as soon as I'd read the article, i checked out the place holder sites like you, and dropped my name into the invite :)
I think gallery can be a very useful tool. Let 's see what it's really about.
The shapes and colors reminds me of 70s/80s graphic design.
Bringing all the Google Design resources under one roof. Can't wait to see what's in store for the future.
Feels a lot like https://www.figma.com/.