What is inside??? Cost of Component Parts of an I-PAD...

 Click HERE forNYTIMES interactive on the omponent parts of an I-PAD ...Interesting breakdown of cost to make an I-PAD...Cited are variable costs of producing an I-PAD and not fixed costs and Opportunity Costs.  They note many costs (see yellow bold) incurred in production are not included in their estimates, but are costs of producing none-the-less.
What’s an iPad Cost to Build?

By STEPHEN WILLIAMS

What satisfies serious techies more than taking a brand-new iPad out of its box?
Taking it apart.
The techies at iSuppli make a living out of doing just that, and they’ve determined that your $499 Apple tablet has components that are worth about $260.
The priciest part of the iPad is its touch-screen display and assembly, which they estimated costs $95. The 9.7-inch display is supplied by a number of vendors, including LG Display of South Korea. The processing chip, manufactured by Samsung under Apple’s direction and known as the A4, is $26.80 and the customized aluminum case for the back of the device added another $10.50.
As is usual with estimates by the market research company, R.&D. costs, distribution, advertising, packaging and software aren’t factored in.
iSuppli estimated that the 32GB iPad, which sells for $599, includes $289.10 in materials, while the $699, top-of-the-line 64GB Wi-Fi iPad has $348.10 worth.
Andrew Rassweiler of iSuppli, who supervised the tear-down of the product, wrote that the iPad “represents a new paradigm” in the way that electronics are produced.
“Conventional notebook PCs are ‘motherboard-centric,’ with all the other functions in the system — such as the display, the keyboard and audio — peripheral to the central microprocessor and the main Printed Circuit Board (P.C.B.) at the core,” he wrote. “With the iPad, this is reversed. Everything is human-machine-interface-centric, with the P.C.B. and Integrated Circuits (I.C.’s) all there to facilitate the display of content as well as user inputs.”
In other words, it’s user-friendly.