reconbot / jQuery-Cool-Fill

Deus Ex Inspired text fill

I was watching the Deus Ex Human Revolution end credts and thought the text fill they were using was cool.
http://www.youtube.com/watch?v=PMMcd6-D4x8

Here is my version of it. It should work on any div or span that has no child elements.

TODO:
 - Make it fill in constant time.
 - Add more "cool chars"

Useage:
  $('#fillme').coolFill("text");

Demo:

http://jsfiddle.net/reconbot/2qNx4/12/