What New Features iOS 4.3

Safari Performance

The Nitro JavaScript engine that Apple pioneered on the desktop is now built into iOS. Using just-in-time compilation, this powerful engine more than doubles the performance of JavaScript execution. Use this power to optimize your webpage or app web view for increased interactivity and responsiveness.

AirPlay

Stream video from your app to a widescreen TV using new Media Player APIs that support AirPlay video. You can also update your web content to support AirPlay. Read more in the AirPlay Video Support section of What's New in iOS 4.3

HTTP Live Streaming Statistics

Track the popularity of your streams and measure their performance. New AVFoundation APIs allow you to track information including how many people are watching your videos, how long they're watching them, and performance metrics like observed bitrate and number of dropped frames. Use these statistics to fine tune your authoring process and deliver optimized content to your users.

Media Player Framework Reference

 

iAd Full Screen Banners

iAd full screen banners grab the attention of users by taking advantage of the large screen of iPad to launch an immersive, interactive iAd experience. This new banner format is easy to implement. And Apple sells and serves the ads to your app while you collect 60% of the advertising revenue generated.
iAd Framework Reference

Test Multitasking Gestures for iPad

This release contains a preview of new Multitasking gestures for iPad. You can use four or five fingers to pinch to the Home Screen; swipe up to reveal the multitasking bar; and swipe left or right between apps.