With Teradek Cube you can stream directly from any camera in HD quality via Wifi, Ethernet or 4G to Livestream.com, no laptop required. It is small enough to be carried on top of your camera, and still encodes professional grade H.264, using only 2.5W of DC power, which can be from a battery pack. Type in Lifestream username, password and channel using the Cube’s WebUI, and you can go live by pushing a single button. Price approximately $1600-2100, depending on model, including 1 month’s Lifestream Premium subscription. Works with Ustream too.