Assuming that the rumor is true and OpenSolaris will be slain by Oracle, we must conclude that the Solaris operating system is obsolete. Solaris can be considered legacy. Sun was a hardware shop and to sell their hardware, they needed a great operating system.
Sun had a great operating system. And the Solaris platform was popular for a long time. And I think that was for the right reasons, at that time. If you or your company is still running on a Solaris platform, it may be time to rethink this strategy.
I do not understand why Oracle bought Sun. Oracle sells software. Sun sells hardware. Sun had some great products, like Java, so I can see some reasons. In the past, Solaris and Oracle had a tight relationship. But the only thing Oracle may be doing right now is a vendor lock-in strategy, where you are totally dependent on both hardware and software from Oracle.
But people don't seem to buy this, literally. People do want to continue to run Solaris, because thats the platform the've invested in. But they don't want to pay for those exotic Solaris Sparc systems, often way more expensive than commodity x86 hardware.
Oracle invested bilions in Sun assets. How are they going to make money of it? Squeeze out existing Sun Solaris customers who are depending on their platform?
If you are setting up a new business or if you think you can pull this off: stay away from this legacy platform. Migrate away from Solaris. Use an open platform that does not lock you in.
And this is also a very interesting read.