Wallpapers help us to spice-up our phone. There are several websites which lets you to download free wallpapers for your iPhone and iPod touch.
Among them, I should say, iDesign iPhone is the best source for iPhone and iPod Touch wallpapers. They have 5000 + high-definition wallpapers (HD Wallpaper) in their gallery.
All wallpapers are update daily and available in different category. You can also rate or leave a message for wallpaper.
Images shown are a few wallpapers selected from iDesign iPhone. 
Marvelous!Really cool!Thanks for sharing buddy.
Welcome RunG,
Wow! coool. thanks a lot for sharing.
Alex, most welcome!