Or we can go all Madonna on Larry Ellison's troops and sing from the top of the balcony:
"Don't cry for me, oh mySQL. The truth is that Oracle can't have you. Through open source's wild days, its mad existance, it keeps its promise, so keep your distance."
OK. Andrew Lloyd Webber I'm not. But Perens' point is pretty simple. Never mind that Oracle bought InnoDB, a transactional back-end to mySQL. It's still open source, it still works, and mySQL doesn't have to build a new one unless it wants to. The same is true for Sleepycat, a SQL-less database for embedded applications. So long as the license remains open source (and it does), no problem.
What Oracle is buying are some of the people who can extend and support these products, not the products themselves. Even when a product goes closed-source (as Nessus did last year) that's just for the new version. You can still use the old version, you can still extend it with a fork.
I find it interesting that Perens quotes a $400 million price tag for Jboss, the Atlanta company I've covered previously here. Such a deal would be great, for the company's owners. But would it really force J2EE developers to go to Oracle? As Perens notes, no. Apache's Geronomo is a fine alternative, if one is needed.
Perens' last line is really his lead. "Open Source developers smile as proprietary software companies fight each other by collaborating more." I couldn't have said it better myself. And neither could Webber.