Touiteur: This is one of the newer yet by far the best Twitter app around. I know there are many simple apps around yet I personally am into customizability. The UI is also beautiful. Key Features of this app are: -Custom colors for people you are following -A widget (3 different sizes) that rotates your tweets, allows you to tweet from, open the app and scroll. -You can switch from Timeline to Direct Messages to Mentions by swiping left or right. -You can have multiple accounts -Custom LED color -Custom Notifications -Has an integrated browser -Choose what tweets you want to be notified of (DM’s/Mentions/Tweets) -Offers the Tweet Longer feature allowing you to use more than 140 characters -Url shortening -3 photo services (YFrog, Twitpic and Tweetphoto) This application continues to improve and Tama has even started an online feature suggesting/voting site with the sole purpose of improving the app. If you are new to the android platform, this app is a must have. This is also a paid app ($2.49).