Yet iPad-based point-of-sale systems don't involve digital wallets. The payment medium is still an old-and-busted credit card.

Apple's iWallet digital wallet will eliminate the need for both the cash register and the credit card. Why? Because it will use Bluetooth, rather than NFC, .

I told you back in March what I thought the new iPad's best feature was: .

Apple, which is notorious for being slow to market with brand-new technologies, was conspicuously early when it came to Bluetooth 4.0. At the time they shipped, the iPhone 4S and the iPad were the only major phone and models to support Bluetooth 4.0.