innovation. and it was true. but itunes radio is a pandora knockoff. apple is just copying it. >> reporter: steve jobs was known for his dramatic presentations. >> there is one more thing. >> reporter: a line that introduced many of apple's most famous inventions. so can apple continue to innovate? it's a question the company faces. the marketing chief previewed the long awaiting new mac pro. >> they're using steve jobs bravado to back up nonsteve jobs innovation. this is in-creditedbly expensive. is it innovative? within a vacuum of geeks, power user, designer, editors. the type of people that will spend a lot of money for a computer, not a product like the ipod, i foiphone other ipad. >> a lot of people waiting for