Here are the most important numbers from Apple’s 
earnings that show that the iPad is seemingly unstoppable, and clearly Apple’s most important product.
$6  billion. That’s how much money Apple made from the iPad just in April,  May and June of this year. The key is that Apple now makes more money  off the iPad, a product slightly more than one year old, than its Mac  lineup. Apple pulled in just under $5 billion in revenue from Mac  desktops and notebooks during the same quarter.
The  people scooping up iPads are not just gadget hounds and consumers with  expendable income. Buyers include large corporations who are handing  them out to employees to help them do their job, something Apple has  been actively pushing for a while. But Apple is also getting a boost in  iPad sales even from sources the company didn’t anticipate.
“We  sold more iPads to K–12 [schools] than we did Macs, which is absolutely  shocking,” said Apple COO Tim Cook on a conference call with analysts  on Tuesday. “We never would have predicted that.”
Shocking, perhaps. But probably not unwelcome.  Apple very likely doesn’t mind getting kids used to working on iPads in  elementary school.  
9.25 million. That’s how many iPads Apple sold during the quarter.