Bambuser is the second livestreaming video app to be approved for iPhone, following in the footsteps of Ustream. It lets users (including bands) broadcast live video to the web from their iPhones. Meanwhile, industry blog Hypebot has launched its own iPhone app, working with MotherApp BlogEngine to produce it. Another new app comes from UMG subsidiary Cherrytree Records, offering news, blogs, tourdate info and episodes from Cherrytree artist video blogs. Kyte is behind the app. Finally, The Karaoke Channel Mobile is a karaoke app offering 50 bundled tracks “in the style of” artists like Lady GaGa, T-Pain and Coldplay, and thousands more available for people who sign up to a subscription.