I have a hard time believing that Apple has directly created 514 000 jobs in the States because of the Ipad. If the Ipad disappeared tomorrow, most of the jobs indirectly supported would probably still exist.
I can believe about 20 000 or 30 000 jobs in existence in America because of the Ipad.
The article refers to the iPad and ‘other Apple products’. In other words, everything that Apple does.