Sun buying MySQL is truly a mixed blessing. Sun has the resources to invest to make MySQL a “real” database and knows a lot about what enterprises would want to see in it. On the other hand, Sun has had a less-than-stellar track record with software. Once upon a time, back when I was at Allaire, we celebrated every time Sun bought a competitor. Hopefully, Jonathan Schwartz, who is a software guy at heart, has pushed enough change through the organization to make the acquisition successful. Alternatively, this may be his way of bringing a critical mass of fresh perspective to Sun.
One of the key areas Sun should focus on is DBA outreach. There is a scarcity of DBAs who have solid operational experience with mission-critical MySQL deployments.
More importantly for me, this is a signal there there are startup businesses to be built around open-source DB infrastructure.