[fragmede]

> which is quite closed, and nobody really can make extensive review for it

That's what Apple wants you to think, and they're very successful at marketing, but it's not really true. The jailbreak scene is not what it once was, but there are innards to Apple devices and services. Apple engineers put their pants on one leg at a time, the same as everyone else.

[nicce]

This is true, but there has been always a great delay on reverse process. One year can mean a lot in the current world.