@NV has ported ucnv’s Diff for Gist Greasemonkey script to a Chrome Extension.

img http://img.skitch.com/20100127-nxct1q4y315uwen8nr6w896upk.png http://chrome.google.com/extensions/detail/ekibhngllckenihijddjkmehiocljcpc

Pretty cool – I’ve been using it since I first saw it. And if you’re looking for more UserScripts, @NV has also released a github-live-preview.