The Lightning Digital AV Adapter Surprise

We’ve been doing significant testing lately with video out using various iOS devices for an upcoming project. In doing so, we waded right in the middle of a strange video out mystery. It’s time to unravel that mystery. (Chung-chung!)
Mystery #1: 1600 × 900 Resolution, Tops
When we turn on “Video Mirroring” to send out an image through the Lightning AV Adapter, the system tells us that the maximum and optimum resolution we can do is 1600 × 900:

http://www.panic.com/blog/2013/03/the-lightning-digital-av-adapter-surprise/