So far I've encountered four companies during my job search that had a decent attitude towards dress:
One said it was okay to dress business casual when I asked while scheduling the interview (East Coast).
Another advertised in its recruitment e-mail an environment where sandals are accepted on the job (Great Lakes area).
Another made no mention of dress but called me back after dressing business casual to the interview (East Coast).
The last said to dress casually or even wear jeans in the pre-interview details e-mail (West Coast).
Down with suits and ties. Join the revolution.