In the interest of keeping this question up-to-date, there is a fork of JSLint called JSHint. An explanation of why JSHint was created can be found here, but to summarize:
JSHint is a fork of JSLint, the tool
written and maintained by Douglas
Crockford. JSLint served me well for
quite some time but in the past few
months it has gotten uncomfortably
opinionated and hostile towards your
code. It is quickly transforming from
a tool that helps developers to
prevent bugs to a tool that makes sure
you write your code like Douglas
Crockford.