SS Twitter App is the simplest, easiest to use Twitter app client around. Supports Timelines, Mentions, Direct Messages, Followers, Following, Public tweets and Search.
From Simple Simon Software
MUCH easier logon for Twitter now!
Added TRENDS screen (touch trend to see the search)
Added ability to search for users on public screen (start search with @ to do this)
Added getting any users timeline with long press
Added ability to enter name to follow