I have an iPhone 4 and wish to upgrade to the iOS 7. Shall I go ahead with it?
Technically, the iPhone 4 will officially support the iOS 7 update. While we will recommend you to update your phone to access most of the apps (that will be updated for the iOS 7 soon), you will not get access to the features that are hardware driven and meant for the iPhone 5S. Also, do keep in mind that the OS update might slow down your phone a bit and drain the battery much faster. You can go back to earlier software from http://www.ipswdownloader.com/.
Rajkumar Menon, on email