Discover what’s happening right now, anywhere in the world with the official Twitter for iPhone app.
Realtime search, Top Tweets, trending topics and maps show whats happening now everywhere and nearby.
Tweet, send DMs, share photos, videos and links to your friends and the world.
Don't have an account? Just sign up from the app!

What's new
iPhone:
* Push notifications for @mentions and messages
* Improved display of shortened URLs
* Correctly load reserved Twitter.com paths, such as http://twitter.com/newtwitter
* Fix connection error caused by a device clock being set incorrectly
* Additional retina graphics
* Enable geotagging in your account with one tap
* fix itunes links
iPad:
* Inline media
* Manage saved searches
* UI improvements...