Multiclient

https://market.android.com/details?id=com.multiclient

This is messenger for everything. Well, almost everything.

This application allows you to quickly and easily send photos and messages from your smartphone to most popular microblogs (Twitter, Tumblr and Google Buzz in the near future) with one touch. To do this you must be logged (in the tab "Settings"). You can add image from gallery by clicking "Add image from gallery". Application automatically sends 120 characters to Twitter with short link to the image on TwitPic.

Tweet Laconizer

https://market.android.com/details?id=com.twitterlaconizer

Can't write short messages for Twitter? Laconizer helps you reduce your message size. Simply enter looong text, press "Laconize" and send the resulting short message to Twitter. To do this you must be logged (in the tab "Settings"). And don't forget to select the number of sentences in the resulting message (in the tab "Settings").