In a JBoss community email today:

I am writing to you today to announce that the Red Hat acquisition of JBoss has closed and we now are officially a part of the largest independent open source company. I am excited about this news and the great opportunity that it represents. We are entering a new era in the technology industry that puts customers back in charge of their destiny, where innovation and value replace lock-in and costly proprietary-vendor software licenses. Together, we believe we can change the economics of the industry, delivering unmatched value to our customers and partners by creating better software faster, systematically driving down costs and simplifying IT.

Some news on it here here here as well.

That makes Redhat the largest independent Open Source company in the world. Cool.