We were also accepted with our project (https://dockerize.it).
The extra $500 for Google Cloud are really nice, but we are expectant for other cool things from Google.
Do you have any idea about how much projects are being accepted? The most powerful thing in this incubators are the relationships with other startups.
In this G+ page (https://plus.google.com/u/0/communities/10729681536514869184...) some teams are presenting their projects.