As soon as a new device is launched, people start searching for the original/stock wallpapers, ringtones etc. ripped from the system dump of that phone. This craze for the official wallpapers is not without reason. The images that come with a device are always have a fresh look and so they attract us.
I have a collection of stock wallpapers from Android devices on my PC which I had gathered from the net and sharing them here with you. Below you can download stock wallpapers from Motorola Atrix, LG Revolution, LG Spectrum, LG Optimus 2X, HTC Endeavor, Samsung Galaxy S2, Xperia Arc, Xperia Arc S, Motorola Droid Xyboard, and Motorola Atrix.
All the wallpapers are in high quality with different pixel size and resolution, depending the device from where they have come. Download the wallpapers in zip packages, extract them and copy to your phone.