Speaking of gobbling up wireless data on iPhone, Ustream has just introduced a new, free app that lets you stream video from your iPhone’s camera over Wi-Fi or 3G and have it viewable live online. Previously, iPhone only had a Recorder application that allowed users to save a video locally and load it up onto Ustream later, but this is a definite step up. You’ve got full communication with watchers through Ustream chat or Twitter, and can even poll them on what they’re watching. The Viewer and Broadcaster app was also introduced recently for Android, allowing straightforward spectating and streaming, respectively. If you’d like to nab Ustream Broadcaster for iPhone, it’s right here in the iTunes store.