iOS 4 comes to your old iPhone Tomorrow

While the new iPhone 4 launches this coming Thursday, the new iOS 4 (new iPhone OS) is already up for release tomorrow, June 21st.
iOS 4 is compatible with iPhone 3G, iPhone 3GS, iPhone 4, 2nd and 3rd generation of iPod touch (late 2009 models with 32GB or 64GB). Some features of iOS 4 do not work on all devices. For example, Multitasking requires iPhone 3GS, iPhone 4 or 3rd generation iPod touch. It is nice to know that Apple is not charging iPod touch owners anymore for upgrades.

Apple iOS 4 comes with over 100 new features, it includes Multitasking, Folders, enhanced Mail, deeper Enterprise support and Apple’s new iAd mobile advertising platform.

So if you are not in the first wave of iPhone 4 shipments or your iPhone 4 pre-order got canceled, at least you get the new iOS 4 user experience.

I just hope the iPhone 3GS hardware is powerful enough to run iOS 4 smoothly.
To install iOS 4 on your old iPhone you need to have iTunes 9.2 or later installed.

Source:Luigi Lugmayr
http://www.i4u.com/article35408.html