Twitter supports mobile and here a Collection of tools to use Twitter and browsing it on your mobile phone.
A mobile Twitter site designed for the iPhone.
“Tiny Twitter … will work on ANY Java enabled device … and ANY Windows Mobile Pocket PC or Smartphone”
Several versions of Tiny Twitter are available including MIDP 1.0, MIDP 2.0, PocketPC and SmartPhone.
Mobile version of Twitter made for the iPhone.
“Twitter Mobile ClientSite. Already working functions: replies, directs, search, geomap, tweetlocal, local events.”
Slandr uses the Twitter API to offers a browser based mobile Twitter service at http://m.slandr.net Slandr offers an enhanced Twitter experience with replies and direct messaging.
Twitter on your mobile phone while avoiding text message charges.
“Quakk is an Open Source Windows Mobile Twitter Application”
How better to tweet than to Quakk? Quakk, as the description says is a windows mobile Twitter client which now supports Tweeter Tags. Quakk requires the .NET Compact Framework 2 for Windows Mobile 5.
Browse Flickr, do some social networking, but most importantly, check and publish tweets.
Extensve Twitter app for mobile phones.
“A Twitter client for BlackBerry smartphones.”
Blackbird has both over the air download and BlackBerry application loader install versions available and is currently up to version 0.5.21 (as of 12 February 2009).
Twitter built for various BlackBerry devices. Update and view timelines with ease.
View timelines, enter updates, and more, all on your mobile phone.
Easily check and update your Twitter right from your Treo.
“a location aware twitter client for Mac OS, Windows, Mobile.”
There is a desktop version of twibble but twibble also has a mobile version called “twibble mobile” – a Java based client primarily aimed at Nokia, Blackberry (although it is recommended to upgrade to Blackberry OS v4.5) and SonyEriccson mobile devices.