Conclusion: It is an Apple product, it works as promised and appears to be the same power supply that comes with the iPad 1&2. It should be noted that the usb cable and an ac extension cable are include in the price. I have tried the cheap copies and found one of them to be defective.
Summary: A must buy for iPad 3 owners for charging. The long lead gives the flexibility to use your devise whilst charging. The junction box gets warm whilst charging but apparently this is normal. I also use it for charging my iPhone 3GS and iPod touch 4G.