New companies get acquired. Old philosophies stay the same.

"But today it seems like the old is doing the plowing. Let’s stop that. Let’s build great companies that are here to fight, here to win, and here to stay until the next generation after us comes along and kicks all our asses. And again and again and again. That’s how better happens."

http://37signals.com/svn/posts/1927-the-next-generation-bend...

That quote is from nearly two years ago, but it's just as relevant today.