Google will give open-source data vendors that offer their software on Google Cloud a share of the proceeds. It’s a good move, and a good thing. But there’s more than meets the eye here.

What was announced by Google Cloud yesterday was a series of strategic partnerships with leading open source-centric companies in the areas of data management and analytics. The companies are an all-star cast of sorts: Confluent, DataStax, Elastic, InfluxData, MongoDB, Neo4j, and Redis Labs.

The partnerships will offer fully managed services running on Google Cloud, a single user interface to manage apps, and unified billing — one invoice from Google Cloud that includes the partner’s service. What this means is that the services will be fully integrated in Google Cloud, users will pay one bill, and vendors will get a cut of the profits from Google.

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