We are live with Human Weather but we almost did not make it.

We got rejected for Twitter four letter words.

This kind of policy is doomed to fail simply because it is impossible to police. Apple is only check the app content through a random test as part of their approval process. Of course, looking for "offensive" content as part of an approval process is futile because user generated content is both limitless and unpredictable.

Read more here - http://www.theiphoneblog.com/2009/03/10/app-story-human-weather-rejected-twitter-fk-implemented-filter-app-store-nsfwl