Should we still support iOS 4?

Question

Now that iOS 5 is out and compatible with iPhone 3GS & up, should we still support iOS 4?

Answer 1

The general rule of thumb is if you want to live as close to the edge with Apple that you support the current and previous releases. That means with iOS 5 in the wild that you continue to support iOS 4 until iOS 6 is released.

Answer 2

If iOS 5 specific features aren't needed, then YES. People with iPhone 3G's and older iPod Touches won't be able to upgrade to iOS5. Also, there is a lag in how long it takes for the entire population of app users to migrate to iOS5.

Answer 3

Yes, according to Read Write Web, 25 million people have updated to iOS5, which is only about 25% according to an article from March 2011.

Answer 4

Definitely NOT, there is still a ton of users running iOS 4.0, besides there isn't that much that you can do with iOS 5.0 that you can't with iOS 4.0