First you have to think about the fact that when the verse was written, men didn't wear pants. Both sexes wore robes. So men and women both wearing the same type of outer garment could not in itself be a sin. It's only in the past several hundred years that men have worn pants. (there's an interesting history of pants that someone posted here recently, can't remember which thread)
In my opinion, this passage is really referring to deliberately attempting to pass yourself off as the opposite sex.
According to what was posted, men have only been wearing long pants for about 225 years! LOL! Before that, their knees were showing!
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I've gone and done it now! I'm on Facebook!!!