Tweetie

Tweetie is a fast, full-featured twitter client for iPhone and iPod touch. It offers everything you'd expect - from a timeline to trends - all with incredibly polished user interface, fantastic performance, and unparalleled ease-of-use.

Features:

• Handle multiple twitter accounts.
• View your timeline, replies, direct messages and favorites.
• Browse your friends and followers.
• Post new tweets, retweet
• Reply directly to tweets and send direct messages.
• Follow and unfollow people.
• Mark tweets as favorites.
• Navigate reply chains.
• Inline Web browser.
• Post links with automatic link shrinking via bit.ly.
• Upload pictures to twitpic.com.
• Update your twitter location.
• View twitter trends and perform custom searches.
• Save your favorite searches.
• Implements the full twitter API.
• Uses secure connection (https).
• Go to User shortcut
• Nearby search
• Themes and adjustable font size
• Bookmarklet support