Twitter for iPhone Updated for iOS 4.2
The latest to be approved and pushed out is the official Twitter app.
for updated iOS 4.2 compatibility, the Twitter app also now supports push notifications each time you get an @ mention on your stream. SMS notifications are also now supported through the application.
When an new account that you follow mentions you, you’ll immediately receive a notification. You’ll know who is talking to or about you on Twitter.
And you’ll be able to continue the conversation in real-time. Notifications for @mentions will initially be available on SMS and on the latest version of Twitter.