That said, as easy as it is to think of sites where isometric text would be a cool design element, I can't easily think of an application where it would need to be actual, editable text. Perhaps if you had a heavily futuristic themed CMS site...
It's cool that this is _possible_ however, just not so cool for accessibility, or readability.
But yes, for visual readability its quite the horror. So better apply it sparingly.
Half-fails in Firefox 14.0.1 (Win7)