Ability to capture current window as image / eyedropper in the colorpicker

[Brian Grinstead]

I was thinking that a nice feature for the new colorpicker in
developer tools would be the ability to use an eyedropper that lets
you click anywhere on the page and choose a color from it (kind of
like the ColorZilla Firefox Addon: https://addons.mozilla.org/en-US/firefox/addon/colorzilla/).

Is there an easy way to capture the current window as an image from
within developer tools? And would anyone else be interested in this
as a possible new feature?

It could look something like this: http://dl.dropbox.com/u/185952/img/eyedropper.png