(adsbygoogle = window.adsbygoogle || []).push({}); Today Apple unveiled their long awaited OS 4.0 for the iPhone, iPhone 3Gs, iPod Touch, and the iPad. This new OS adds a boat load of new features, some of which were highly demanded by the Apply Community. They include, Multi-Tasking of 3rd Party Apps, enhanced mail, iBooks and many other features.

Some other features coming in the power-packed OS:

• Spell Check
  
• Bluetooth keyboard support
  
• User-defined wallpaper
  
• Tap to focus when recording video
  
• Playlist creation and nested playlists.
  
• Folders to better organize and access apps
  
• Improved Mail with a unified inbox, fast inbox switching and threaded messages
  
• Enhanced Enterprise support with even better data protection, mobile device management, wireless app distribution and more
  
• Apple’s new iAd mobile advertising platform
  
• Game Center
  
• iBooks, the delightful new ebook reader and online bookstore recently debuted on the iPad.
  

Here is a video demonstrating the new OS...
Video not made by me, and belongs to it's respected owner.


Something users should be aware of, the Multi-Tasking is only avaible on the iPhone 3Gs, and specific iPod Touch models, namely ones made in late 2009 (32GB and 64GB).

Steve Jobs, founder of Apple, did have a comment on the lack of support for the feature on older models. Saying that, "the hardware just doesn't support it [multi-tasking]".

So it looks like users with the older models of the iPhone and iPod Touch will have to upgrade to newer models or miss out on the Multi-Tasking.

For developers the OS 4.0 Beta SDK is now available at developer.apple.com. For the rest of us, we can expect the update this Summer.