Apple could allow iPhone owners to install software from outside of the App Store within weeks, according to reliable tipster Mark Gurman. But the change will reportedly only apply to those living in Europe – with iPhone users in other countries subject to the same restrictions as before. iPhone owners have only ever been able to install apps and games from the App Store, which is preinstalled on all iOS devices. This allows Apple to vet all software before it’s available to download on iPhones worldwide, helping it to maintain an iron grip on security and unapproved features. However, critics…