Apple's iPad sold three million units

Apple's iPad sold three million units in the first 80 days after its April release and its current sales rate is about 4.5 million units per quarter.

At this current rate, the iPad will pass gaming hardware and the cellular phone to become the 4th biggest consumer electronics category with estimated sales of more than $9 billion in the U.S. next year. TVs, smart phones and notebook PCs are the current three largest categories.

CNBC. 6 October 2010

Disclosure: I own Apple.