Not to mention that, in Google's case, they came to prominence through some real innovation. Microsoft borrowed an OS, scammed IBM, copied WordPerfect, strong-armed OEMs into bundling their apps with the OS, lied to the DOJ, etc. Google came up with an innovative way to monetize the internet without ruining it, and so far they haven't strayed too far afield.

Now that Google's a public company, though, their 'Don't Be Evil' ethic is harder to square with Wall Street's poisonous demand for increasing stock prices at all costs. So sure, we ought to be wary, but I think Google's actually trying to compete as fairly as possible. And I don't think it's Dropbox they're cloning. They have this little competitor named Microsoft that would like nothing more than to neutralize their business model by giving away its own Dropbox clone - not to mention patent suits (and spending billions cloning Google's primary business), etc. Remember 'suck the air out' of your competitors business model? That was a Microsoft expression.