Has this become possible due to some new iOS6 feature? Afaik previously there was no way you could inject events or grab the screen contents outside of your own

Has this become possible due to some new iOS6 feature? Afaik previously there was no way you could inject events or grab the screen contents outside of your own app... I'm talking about non-JB devices of course. So how did you do it? Partnership with Apple? Private APIs? I'm really curious.