I think he means _selling_ to businesses (i.e. B2B as opposed to B2C), not _running_ a business. Also, your nasty tone doesn't help.
Apple tried and failed to enter B2B, recently.
Here is a quote from Jobs: People think focus means saying yes to the thing you’ve got to focus on. But that’s not what it means at all. It means saying no to the hundred other good ideas that there are. You have to pick carefully.
And can you give an example and cite how Apple tried and failed to enter B2B?
WebObjects, meh, if that's the biggest fault you can point out in Apple then they're doing fine.
Apple is great a certain things and at deciding to focus on those areas, such as dropping XServe and WebObjects.