They’ve refreshed the Solaris Cool Stack, I see. Most obviously, there’s new stuff: Ruby (with RubyGems and Rails) and Memcached. But for my money, the most interesting is the souped-up PHP. It comes with a ton of extension libraries, and, most important, the Suhosin patch from the Hardened PHP Project. I have no visibility into why there is so much turmoil and acrimony in the PHP-security world, but I suspect you’d be nuts to deploy any serious PHP app without Suhosin.