Seesmic have released their 'Seesmic Mobile' Twitter client for Android and Blackberry on their respective application stores. Available for download free of charge, the clients are slick, feature packed and refreshingly free of advertisements.

The Android client (pictured above) has a great design that utilises a standard tab-based user interface with a red accent, providing virtually every feature (bar multiple account support) that a Twitterer could desire. Included are the ability to scroll without limits back through your timeline, photo and video upload (either from your device camera or from the gallery) via a variety of online services, the ability to add your location to your tweet, URL shortening, saving tweets-in-progress as drafts, switchable full name / username display and very granular notifications.

The Blackberry application also features a native-feeling UI and adds lists and saved search support, albeit at the expense of video and location features.

If you give Seesmic Mobile a try, let us know how you get on and - of course - don't forget to follow @downloadsquad!