Anyone needing that kind of stability should just use FreeBSD. They know how to put together a rock-solid system, and they have sensible release policies to ensure that their releases are very usable many years after first released.
Even the best "enterprise-grade" Linux distributions pale in comparison to FreeBSD and everything that it offers. It's a complete system that just works.
Just not for enterprise-grade businesses.. who wants a "complete system" that's almost completely dead like anything BSD (Berkeley So Dead)? With Red Hat, they have seven years of support for each major release from a regular subscription contract, and even extended life support contracts for more time than that.
Flash sites should be included as censored, as far as iOS users are concerned.
Oops, jumped to add this comment, and wish I could delete it, since it has nothing to do with a country's request for censorship.