No 2. Twitterific
This award winning twitter client provides complete functionality of twitter at your fingertips. Tweeting is made easy and fun with this simple and elegant app. This third party application boasts super fast scrolling and easily absorbs the workflow.
No 1. iBooks
A lot of people swapped their plans for Amazon Kindle with the iPad. This application makes that decision worth every bit. iBooks brings e-book reading closer to reality than ever. Its allows the user to download and read books of their choice from the iBooks store. The available titles are presented on a beautiful shelf to choose from. Other functionalities include bookmarking and adding notes to your favorite passages.