Being a large company doesn't mean you can "easily replicate" things. The major reason startups can wiggle their way into a market and become a player is because large companies can't react in time to what an agile startup is doing in their space.
That's fair. Context is important here. I had facebook basically consuming twitter's functionality in mind. I was also attempting to point out how little innovation many ideas actually contribute.
Digression :: Has anyone noticed that myspace has recently ripped off a lot of facebooks features too?
