Ustream, the popular web service to broadcast and interact with live events, updated its iPhone app back in March to unify the broadcasting and chatting features in a single package that allowed users to record and engage in conversations in the chat room at the same time, providing additional social features for Facebook and Twitter sharing as well. With a new update released today and now available on the App Store, Ustream is bringing native support to iPad owners with a brand new app that’s been completely redesigned to take advantage of the iPad’s larger screen. The update is universal, so you’ll need to update your existing Ustream iPhone app to get the iPad version.

Just like the iPhone app, Ustream for iPad will let you broadcast and interact with your audience from a single interface that, on the iPad, lays out video, audio, chat and social controls in a semi-circular overlay control popup similar to Grazing’s slidepad. You can flip cameras and adjust audio, or if you want to see what’s happening online, head over the social stream to hear what people are saying on Twitter and Facebook about your show, or simply pop into the chat room dedicated to your broadcast. Obviously, you can also watch live shows and participate in the chat room – Ustream’s iPad app lets you check on popular, live and featured shows right from the homepage, so if you’re a heavy Ustream user you’ll always have something to tune into. Among the new features, Ustream also touts “Airplay support for true social interactive viewing of the chat and social stream”.

Ustream already had a very solid iPhone app, and this new iPad version contributes to making the service a complete solution that works on any web browser, and now iOS devices as well. Get the app here for free.