CUPERTINO, USA: Apple today previewed its iPhone OS 3.0 software and announced the immediate availability of a beta software release to registered developers.

The iPhone OS 3.0 beta software and SDK include over 1,000 new APIs and are available today for all iPhone Developer Program members to use for development and testing of their apps for iPhone and iPod touch.

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Included in these APIs is the ability to leverage the incredible purchase model of the App Store within apps. In-App Purchases will allow developers to offer subscription content and provide the ability to sell new content and features in a simple and secure process.

Developers can also more easily create games for iPhone and iPod touch by using Bluetooth.

"The new iPhone OS 3.0 is a major software release packed with incredible new features and innovations for iPhone customers and developers alike. It will keep us years ahead of the competition," said Philip Schiller, Apple's senior vice president of Worldwide Product Marketing.

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Another key developer feature in the iPhone OS 3.0 beta software is the ability for apps to interface with hardware accessories, creating a whole new element of control for iPhone and iPod touch accessory developers as well as a new ecosystem of solutions for customers.

Developers will also be able to use Apple's new Maps API to integrate Google Mobile Maps services within their apps which will offer Google Map tiles, current location, custom annotations and geocoding. The iPhone OS 3.0 beta software includes the Apple Push Notification service which provides developers with a mechanism to alert users with sounds, text or a badge.

The new iPhone OS 3.0 software will be available to iPhone and iPod touch users this summer with over 100 new features.

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Today, the groundbreaking App Store has more than 25,000 applications available to consumers, and 15 more countries have been added so the App Store is now available in 77 countries, allowing developers to reach more than 30 million iPhone and iPod touch users around the world.

Developers set the price for their applications and retain 70 percent of all sales revenue. Apple covers all credit card, web hosting and infrastructure costs associated with offering applications on the App Store.