While most people have written Symbian off for dead ages ago it still alive and kicking thanks to it's HUGE built in user base. So it's good to see it still getting love from developers. Gravity is the best social client out there for Symbian and one the best well... ever for any OS. There just was a beta release not too long ago and it has a ton of improvements to it.
New Feature: App.net support
See your timeline, your mentions, friends and followers
Read the global stream, check out new users and follow them - if you like
Fetch threads or search for #hashtags
Preview images posted to App.net just like you’re used to on Twitter