Ustream is a great service for life casting and live event streaming, made portable on your Android tablet.
The service allows you to choose from a wide variety of networks, from news networks to celebrity podcasts. The app is organized very well, and everything has a nice flow. You can look at the most popular networks, search for specific ones, or look through categories based on your personal interests. Everything from gaming to spirituality has a category. Of course, you can favorite any stream and watch it again later.
If you are a paying member of the service, you can log in and utilize those benefits. The app can be a bit glitchy, and the security permissions for members are quite numerous. The benefits of watching streams on a larger screen speak for themselves.
Ustream on Android Tablets lets you stay connected to your favorite events, 24/7.