06/07/2010 05:12 am ET Updated Dec 06, 2017

iPhone OS 4.0 Apple Announcement: New iPhone Features To Expect (PICTURE)

The unveiling of the new iPhone operating system, iPhone OS 4.0, is expected to take place at an Apple announcement scheduled for Thursday, April 8.

What is iPhone upgrade likely to include?

TUAW speculates that the new iPhone OS will offer multitasking, a new home screen, better app management, and some kind of a "landscape mode/switch." Apple Insider, citing "people with a proven track record in predicting Apple's technological advances," also predicts that iPhone OS 4 will introduce multitasking.

Gigagom's list of six features to expect in iPhone OS 4 includes multitasking, support for a second camera, better voice-to-text features, a higher resolution display, music streaming via the cloud, and a "unified inbox."

Engadget reports Apple's invitation for the iPhone OS 4 event promises a "sneak peek of the next generation of iPhone OS software." (Read their full description here)

Some sources, like CNET, speculate that iPhone OS 4.0 will include a novel "integrated ad" platform:

Apple got into a tug-of-war with Google over AdMob last year--and lost. Apple settled for Quattro Wireless, another mobile advertising company, which it bought in January. Since the purchase, Apple has been mum about its plans for Quattro within Apple, but the event on Thursday could serve as a coming-out party for a new advertising platform that is integrated with the iPhone software development kit.

Check out the Apple iPhone OS 4 invitation below. Tell us--what feature would you like to see most?