Analyst Colin McGranahan of Bernstein Research has said today the Apple iPad is the fastest selling gadget of all-time, with an estimated 8.5 million units sold since launch in April.
NPD says that 13 percent of iPad owners would have instead purchased a new computer had the tablet not been available.
McGranahan calls the iPad a "runaway success of unprecedented proportion."
Apple has recently made the tablet available via Amazon, Target and Wal-Mart so sales are expected to spike over the holiday season.










