Logcat
12-06 09:23:25.693: W/System.err(537): 401:Authentication credentials (https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have set valid conumer key/secret, access token/secret, and the system clock in in sync.
‘system clock in sync’ this is the problem.
Unfortunately, if you haven’t
rooted your phone and your provider doesn’t provide NITZ, you’re kind of screwed if your phone doesn’t keep good time or doesn’t sync to GPS time.