The need for this came about because I've started to distrust bit.ly links on Twitter. What if you could see one and instantly know the original owner, so you wouldn't be afraid of hitting malware? Tiny.cat still lets you shorten anonymously, however the real benefit is after you register your tiny.cat/username.
Anonymous links: http://tiny.cat/to/anonymous_link
Registered links: http://tiny.cat/ayumi/link_text_here