radarlogo.bmpSan Francisco start-up Tiny Pictures allows you to take and send photos to your friends’ phones. The photos can be shared almost instantly and with groups of friends, who can then comment.

The company’s product, named Radar, will get a boost tomorrow, when Danger, which powers the Sidekick mobile device, will announce Radar’s software is available to be downloaded via a user’s carrier. The first carrier, Suncom Wireless, will likely be announced tomorrow. The two companies plan to announce others.

We haven’t written much about Tiny. It received $2.7 million from Silicon Valley venture firm Mohr Davidow Ventures in March 2006. It is one of a handful of companies that automate the photo-sharing process. All you do is take the photo, hit another button to create a message (where you can write in a subject line if you want), and then hit send. It then goes to your chosen group of friends, where they can comment. It also now does videos.

An advantage of being installed on the Danger device is that the user can remain notified in real-time when new photos or videos have arrived or been commented on. Previously, when used on a regular phone, a user would have to switch over to the Radar application.

KyteTV, which is offering real-time transmission of photos over Java-enabled phones, can be considered a competitor — when it launches.

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