A quick notice : since the Webfont aren't part of the C2's canvas per se, you can't rotate them (or apply any filter as well) inside C2. You need to specify them inside the css. Don't forget your browser vendor specific prefix !
(For example, to rotate text 67? :
-webkit-transform: rotate(-67deg);
-moz-transform: rotate(-67deg);
And with a picture :
<img src="http://dl.dropbox.com/u/1412774/WebFontC2Plugin/demo2.png" border="0" />