Radar

Radar is mobile software that allows users to publish a photo to channel that can be broadcast to almost any other cell phone user you want. But because of its privacy settings, you get to choose who sees your photos. In addition, the software allows you to subscribe to others' channels (so long as they invite you) and then display, on your cell phone, your own channel as well as that of others. It also gives the option of showing a chronological stream of photos and to add comments to your own and others pictures.