A few days ago, Ubuntu 11.04 Natty Narwhall should have been released but i don't know why till now the countdown widget is still written "comming soon". While waiting for Ubuntu 11.04 final released, we introduce 17 new default wallpapers which will come with Ubuntu 11.04 Natty Narwhall, Some pictures of them as follows :

Although you're not using Ubuntu 11.04, you can taste the Ubuntu Natty Narwhall new wallpapers here.
enjoy ...