iPhone OS 4.0 Release Date
iOS 4 (formerly known as iPhone OS 4) was released on June 21st 2010. Owners of current devices (iPhone 3GS and iPod Touch 3rd Gen) can take advantage of all of the new features while owners of older devices (iPhone 3G, iPod Touch 2nd Gen) will have some key features removed. The update is free for all eligible devices unlike previous upgrades where Apple charged $9.99 to iPod Touch owners.
Keeping in mind that the official word from Steve Jobs in the Keynote today was that iPhone OS 4.0 is coming “this summer.” However, if history is any indicator of things to come (and it usually is with Apple) then it shouldn’t be too terribly difficult to predict the release of iPhone OS 4.0. Looking at the release of iPhone OS 3.0 last year it fell on June 17th, just a couple of days prior to the landing date of the new iPhone 3GS. So, if this pattern holds, then iPhone owners should see the new OS sometime in June, most likely coinciding with a new iPhone update. While currently there is no official word of a new iPhone, this too matches history with Apple’s secretive product launches especially as it relates to the iPhone. However, there are plenty of rumors and evidence out there that there will indeed be an update.
iPad owners, on the other hand, will have to wait until “fall” to get the new OS on their devices (according to Steve in the iPhone OS keynote today).
Also, iPod and iPad owners should expect to pay for the update while iPhone owners will likely get it for free.