After reading all the replies, I feel some have missed the point.
It's absolutely true that, if you're a Glassfish user today, you shouldn't panic over future possibilities. However, if you're only considering moving to Glassfish, it seems absolutely prudent for you to pause and consider the possibilities.
Just because nothing's been finalized, it's not reasonable for anyone to suggest, "Don't worry about what may happen. Go ahead, sell your CIO on Glassfish. Invest your resources to train admins to learn how to install, configure, deploy, and manage Glassfish. Get your developers trained on it. Size your hardware for it. Then, if Glassfish is orphaned by IBM, you can always start over with another application server as long as you wrote JEE compliant apps. Oh, and don't think your CIO will believe you to be a complete tool for suggesting Glassfish in the first place."
Sun could put an end to any speculation about the future of Glassfish by declaring that Glassfish is being donated to an open source organization out of the reach of IBM or any potential suitor. Ditto for NetBeans.
Short of that, I don't know if I'm crazy enough to bet on Glassfish today not knowing if it will be an active project after what seems like the very likely acquisition of Sun by IBM, or another company whose interests rarely coincide with mine.
Just my 2 cents ...
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