Now we start to see App.net iPhone clients that are really different. Rivr is not only an app that focus on a stream, it also focus on sharing, on photos and even music.
You can share your moods and location. When you share music you can share what you are listening on your iPhone or you can search for the song itself.
Rivr is very different from the rest App.net clients and I really like it. It is available for free in the App Store [iTunes Link].