Apple Thoughts: iPad: 'The iPod Has Nothing on Me.'

"Apple's iPad is already huge. In fact, after just its first quarter of sales, it's already the company's third-biggest business segment."

You can clearly see the pink showing through, and that is the iPad revenue as it goes past the iPod. The iPad did so well, at $2.2 billion USD in revenue, that it made more than the iPod at $1.5 billion USD, and almost half as much as the Mac revenue at $4.4 billion USD.