The first step to becoming a legitimate OS is getting copy/paste functionality. We got that in NoDo. The next step to become legit is native screenshot capability. iOS has had this since launch, and Android just recently got it in 4.0, so now it’s Windows Phone’s turn.
In WP8 it will work very simply. Just press the camera key and Start button simultaneously and you’ll see the screen flash with your accent color. The screenshot will then appear in the Pictures app. This will make it easy for devs, users, and *ahem* tech bloggers to share screenshots. It’s about time.