Pinterest, the social image curation site, announced at the South by Southwest conference that it is expanding its small empire by adding an iPad app and retooling its profile pages to be “more beautiful.”

In a talk at the conference, Pinterest’s co-founder and CEO Ben Silbermann said the new profiles would have better discovery features, CNN reported. He did not mention a firm date for the app’s release.

The site has seen exponential growth in the past few months. The site was launched in 2009, but gathered only 10,000 users in its first nine months, the report said. The site is now estimated to have 11 million unique monthly users, according to Tech Crunch.

With that growth have also come questions about the legality of the site’s method of image sharing, The Washington Post reported. A photographer and a lawyer named Kirsten Kowalski detailed her concerns in a personal blog post that caught fire shortly after it was published late last month.

She was alarmed because the site’s terms of use state that users assume all the risk — including agreeing to pay to defend themselves and Pinterest — if someone decides to sue over an unauthorized pinning.

Kowalski’s post has set off a lot of discussion about the legal safety of posting to the site, something that could definitely be a problem for the site if it continues to expand.

Pinterest did not immediately respond to a request for comment about the discussions around copyright issues it may face.

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On Small Business — Pinterest: What’s the role for businesses?

She the People: Pinterest is a female ghetto, but that’s not the problem

The Buzz: ‘I don’t like that I love Pinterest’: An update from our columnist