iRetroPhone
Retro Rotary Dial Phone Application for your iPhone. Take your iPhone back to the 20th Century. Now, iRetroPhone automatically dial the number for you.

ProCamera
This ProCamera iPhone app has an anti-shake-mode for better images using the accelerometers. Also a self-timer with audio-countdown, and a kind of level-meter, that

Twitterfon
Twitterfon is a free Twitter app for the iPhone with a simple interface and a nice set of features, including Replies, Messages, Favorites, Search,

Twitterlink
Twitterlink lets you take any url from the Safari browser and post it to your Twitter account on your iPhone or iPod touch. Great

iPhone Masters Golf
If you are following the Master’s Golf tournament, the Masters app for iPhone provides free access to live video form the Master’s Golf Collection