How to Copy/Paste from the Clipboard in vim

On Ubuntu 11.04, accessing the clipboard from vim is disabled by default, this is how to enable it:
Download the package source:

apt-get source vim

Edit vim/debian/rules

TINYFLAGS:=--with-features=normal
TINYFLAGS+=--enable-gui

Build and install the package:

dpkg-buildpackage
dpkg -i vim*.deb

Now you can copy and paste using:

"+y to copy to clipboard
"+p to paste from clipboard