Twhirl is the number 1 twitter client with more than 100,000 downloads and 7% of all tweets posted each day. It automatically fetches your friends status updates, direct messages and replies. It also has the ability to colour code different types of messages and alerting you to new messages both visually and audibly.

Twhirl brings together two of the hottest web properties: Adobe Air and Twitter.  

There are buttons for shortening links, adding images, archiving and searching Twitter itself. It can support several twitter accounts and is really simple to use.

You can update your status not only on twitter, but also on Pownce and Jaiku. It is compatible with both Windows and Mac and is considered one of the best third party Twitter applications.

Another useful feature is being able to search all other tweets that feature your user name. Tweets can also be spell checked before being posted.

Twhirl is a great tool for light users, or for people who want to make more use of twitter to build up a following that needs more management.

Twhirl is very similar to TweetDeck except you can access multiple twitter accounts directly through the software; it is compact enough to have on the corner of your laptop.

Basically it is identical to Twitter but you don’t have to go to the website.