This argument is way over used. It is 'your' choice to upgrade to iOS5.

It isn't like Chrome where there are rolling updates that just get applied. You actually have to sit at your computer for a while, download the software and than install it. Many chances to turn back.

Lame argument. Microsoft offers you a "choice" of installing updates as well. What if they started deleting files put by other legitimate apps because it is slowing your computer or changing your wallpaper because its too ugly... where is the line???