After an outcry in Britain over rape threats on Twitter, the company said a feature designed to make it easier to report abusive tweets when using Twitter on the iPhone would be coming to other platforms. And the recipient of those threats expressed approval but added that the service needs “to step up and take responsibility for what is tweeted on their site.”

Earlier Saturday, an executive with Twitter UK said the service was testing ways to make abuse reporting simpler. Twitter UK General Manager Tony Wang sent a series of tweets saying that the service takes online abuse seriously and directing users to the company’s report form. He also said, “we’re testing ways to simplify reporting, e.g. within a Tweet by using the ‘Report Tweet’ button in our iPhone app and on mobile Web.”

A Twitter representative subsequently told CNET that “the ability to report individual tweets for abuse is currently available on Twitter for iPhone, and we plan to bring this functionality to other platforms, including Android and the Web.”

The tweets and the rep’s statement appear to be a response to an outcry over rape threats received by Caroline Criado-Perez, a freelance journalist, feminist campaigner, and co-founder of a group that pushes for more women experts in the media.

More: Twitter to Simplify the Reporting of Abusive Tweets, After Outcry Over Rape Threats