When iPhone 3.0 comes out later this year, we'll see iPhone apps tied to special-purpose accessories. Imagine a universal remote that lets you use your iPhone to control every box in your ...

Square’s popular magnetic stripe card reader plugs into an iPhone headphone jack, giving small business owners who would otherwise go cash only the ability to accept debit and credit cards. But Apple ...

Unlike the regular iPhone-compatible Square swipe accessory, which the company has made available for free, the new Square Reader for chip cards costs $29. Another change: The new Square Reader ...