Pingle

Pingle is a client for the Ping.FM social networking aggregator service. With Pingle, you can use your iPhone to
post text, photos, and location updates to all your blogs, microblogs, and social networks at once.

* Supports Facebook, Twitter, Myspace, FriendFeed, Flickr, Wordpress, Blogger, Brightkite, Livejournal, LinkedIn, and more.
See http://ping.fm for a complete list.
* Post pics from the camera or photo library
* Location integration with automatic privacy controls ("fuzzing")
* Google Maps viewer to review or change your posted location
* Wide keyboard / landscape supported for easier typing
* View your post history