The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From B.U.G.:
Live stream more easily with TapStream Cam and TapStream Switch!TapStream Cam is a live streaming camera and TapStream Switch is aeasy-to-use switching application. You can control the switcher andchoose which video to stream by tapping on a touch screen.Video and audio can be selected separately.The selected video/audio is sent to a Mac and you can live stream to Ustreamor NicoNico or whatever.While streaming, all operation are done with TapStream Switch oniPhone/iPad. No operation is needed on Mac.Besides, TapStream Cam works as a WiFi web camera that is connecteddirectly to your Mac without TapStream Switch.=================Preparation:1. iPhones as a camera. Install TapStream Cam.2. iPad/iPhone as a switcher. Install TapStream Switch.3. Mac for broadcasting. Install TapStream Driver and a broadcasting application. (e.g. USTREAM Producer)For more information please visit out web site. http://tapstream.jp