Very interesting to see that this concerns app stores as well as web browsers. Web browsers had not been mentioned in most declarations regarding anti-competitive investigations about Apple so far.
This is very important because Apple is preventing competition in web browsers engines, forcing competitor browsers (like Chrome and Firefox) to use the engine under Safari (WebKit), which they fully control. By doing so they deprive other browsers of most of their value, and prevent the development of web applications capable of competing with native applications, because they do not implement crucial features in WebKit, like push notification.
This is very important because Apple is preventing competition in web browsers engines, forcing competitor browsers (like Chrome and Firefox) to use the engine under Safari (WebKit), which they fully control. By doing so they deprive other browsers of most of their value, and prevent the development of web applications capable of competing with native applications, because they do not implement crucial features in WebKit, like push notification.