It's a scam, plain and simple.
For example, let's say they list an iPad for $0.01. Ok, 1,000 people bid in once cent increments on the iPad, at 60 cents a bid (average), Quibids has already made $600. A 16 GB iPad costs (MSRP) $499. Quibids has already paid MSRP (which I am SURE they get a discount) and made a 101 profit, off of one item. 999 people are out an iPad, and one person got it because the other 999 basically paid for it for them (minus whatever the "final" bid is that the winner pays, of course.
SCAM, plain and simple.