EchoBlogger

Well as said earlier, the buzzing iPhone OS 4.0 released with a lot of new features. On April 10th,2010, Apple announced the latest OS with 100 plus features that includes multitasking, enhanced security, new device management capabilities, and improved enterprise integration

The new OS mainly deals with

Multitasking

Developers will have access to seven multitasking services, which will allow tasks to be performed in the background while preserving performance and battery life. So you’ll be able to make a Voice over IP call while playing a game or checking email, find a restaurant on Urbanspoon while listening to Pandora, and more.

Here is the list of all its features.

Background audio
Voice Over IP
Background location
Push Notifications
Local Notifications
Task completion

Folders

Organize apps into folders with drag-and-drop simplicity. Get faster access to your favorites and browse and manage up to 2160 apps at once — many more than the current limit of 180 apps.

Even Better Mail

See messages from all your email accounts displayed together in a unified inbox, switch between in boxes more quickly, organize messages by threads, and even open attachments in third-party apps.

iBooks

The best way to browse, buy, and read books on a mobile device. Easily flip through the pages of a book you’ve downloaded from the iBookstore while listening to your music collection. Browse tens of thousands of books — many of them free — by title, author, or genre. You can even check out reviews and read sample pages before you buy.

iPhone OS 4 Compatibility

iPhone OS 4 will work with iPhone 3G, iPhone 3GS, and the second- and third-generation iPod touch this summer, and with iPad in the fall. Not all features are compatible with all devices. For example, multitasking is available only with iPhone 3GS and the third-generation iPod touch (32GB and 64GB models from late 2009).

Now it is the time for iPhone developers to know the new features in SDK 4 for building new applications.

Data Protection
Wireless App Distribution
Improved Mail
SSL VPN Support
Mobile Device Management

Any doubts regarding the new OS ?? Then its high time for you to watch  the preview event where Steve Jobs gave a sneak peak of OS 4.

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