Mootools Core 1.2.4, HTML, CSS, JavaScript
Mootools Core 1.3 (nightly), HTML, CSS, JavaScript
Animate scale() on Firefox
No-Library (pure JS), HTML, CSS, JavaScript
Lists user Fiddles (new API). Using JSONP.
Modal Window for jsFiddle (IE7+)
Modal Window for jsFiddle
Doesn't work too well ... But you get the gist.