>Because Apple was founded in 1976 and I'm guessing they aren't going anywhere. Google was founded in 1998 and I don't think they're going anywhere.

I'd bet everything I have that you'll be wrong. Look at any list of "top companies" over decades or centuries, and you'll see that, almost exclusively, they eventually disappear, via bad business, takeovers, whatever. There are so many massive, "successful" companies that you've probably never heard of because they no longer exist.

That said, not sure why people are ragging on Rovio so badly. These guys absolutely crushed it.