Hummingbird

Hummingbird is an intelligent Twitter marketing tool. It targets and auto follows Twitter accounts based on keywords. It also provides stats and reports of your account, followers, and interested tweets.

As an Adobe Air app, Hummingbird supports Windows and Mac OSX (it should support Linux though it’s not written in Hummingbird website. Strange uh?). One cool feature of Hummingbird is that it supports 3rd party plugins and most of them are free. Unfortunately Hummingbird itself is not free and kinda expensive.. 197$! and there’s not trial version to test.. At least the screenshots shows some of the mentioned features.

Dabr

Dabr is Twitter web client for mobiles and can work with any mobile connects to internet. Its interface is very simple to use and has lots of features.

At the top, you have different pages of your friends tweets, replies, direct messages, Twitter search, trends, friends profiles, and favorites. There’s also a page for uploading pictures to TwitPic.

One cool feature of Dabr is the ability to change the interface to best fit your phone screen. In the settings page, there’s an interface for iPhone (touch phones), normal phones, text only, PC/Labtop, and work safe interface (which is a very simple minimal not colored interface to make sure work in all mobiles).

For each tweet, there are options to reply, retweet, DM or to favorite the tweet.

Kzalek

Kzalek is a decent Adobe Air Twitter client for Arabic users. Adobe Air apps have problems in viewing Arabic fonts in Mac and Linux (as well Flash). Kzalek solves this issue and also provides right to left (RTL) view for Arabic tweets.

What makes Kzalek lovely is it’s simple minimal interface plus the features that are presented in small neat icons. Features like translating tweets to Arabic, expanding shortened URLs using Untiny service, and uploading images to TwitPic.

Kzalek still in beta supporting an Arabic interface only for now. It seems promising in future as global Twitter client in case the English interface is supported. Note that Spaz Adobe Air app also support Arabic encoding in tweets.

Developed by Mustafa Farghay. More on ArabCrunch.

Termtter

Termtter is a terminal based Twitter client written in Ruby language. You can post tweets, send direct messages, view followers, and more using shell commands! A geeky type of apps.. Also Termtter supports plugins to extend the functionality of the app.

Termtter can run in Linux and MacOS. For Windows users, there’s a Quitter command line Twitter app.

TwitWho

TwitWho is a human-edited directory of Twitter users. It contains categories and each category has featured users, like arts, business and news. You can become an editor in TwitWho and help moderate the directory editing.

TwitLay

TwitLay provides a free and easy way to customize your Twitter profile background . What makes TwitLay ( Twitter Layout) service better than other profile background Twitter services, is that it’s totally free and very easy in merging two pictures, e.g. the background picture and your own picture with your photo and info.

Swift Twitter App

Swift is a simple Twitter app for Android phones. Swift is free and has number of features like photo and video uploading. Swift is still under development and new features are added in every release. You keep updated with latest features via the Swift Google Group.

Twibble Mobile

Twibble Mobile is a Java mobile Twitter app supporting wide range of mobile devices (Nokia, BlackBerry or any Java enabled mobile).

Twibble mobile has many features like uploading pics with TwitPic or any media (pic, text, audio and video!) with Mobypicture service. Also it supports identi.ca/laconi.ca instances. View all features of Twibble Mobile here. Not all these features come with the free version of Twibble Mobile. The full version is for 4.9 Euros.

Twibble was featured on many major websites like TechCrunch, Mashable, and BBC online.