This is a good point. I'll take it further, Google rarely seems to participate in the platforms they create. Look at Android, is there is a single pay app by Google? How many non-stock apps have teams dedicated to them (in other words, not 20% time projects)? Why would I invest my time in a platform when the parent company won't do the same?
I'm not ruling them out, I'm just saying that they invest only the bare minimum into their own platforms. Not a single pay app?
Look at what Microsoft did when they created a gaming platform. They bought Bungie.
Then look at Google and Chrome OS. They created 1, 1 new app for it (Google Talk), the rest were all existing applications built for backwards compatibility with older browsers.
In seriousness, this has no hope of contending in an already crowded space.