Its been long since there is any good twitter client/app developed for the S60 based mobile phones, and finally now Gravity – a very perfect client for twitter has been launched and it has become popular already and been tried by many. Gravity is the S60 Twitter client.

Gravity is the first fully-featured and native Twitter client for the S60 platform. It supports multiple accounts, Twitter Search, Laconica, posting of pictures via MobyPicture & TwitPic and wraps everything into a gorgeous looking interface.
Here are a few features of the Gravity Twitter Client:

• You have option to tweet, chat, reply, DM, follow, unfollow, favorite any tweets, search the tweets etc.
• Tabbed view of your Timeline, Replies, Messages, Friends etc.
• Audio alerts for replies/tweets etc. which can be changed or configured accordingly
• Supports multiple accounts usage
• Section to search through twitter and trends section
• Support to handle groups
• Post pictures to MobyPicture, TwitPic, TwitGoo & Posterous
• Open URLs from any Tweet
• Ajax/Kinetic scrolling in Nokia 5800 and Nokia N97
• Full screen mode in S60 v3

Download gravity twitter client from here.
There is also a full registered version available, pricing depends on the area of your location.