The ability to move a model in Augmented Reality space would be useful, specifically forward/backwards and left/right along a floor plane. At the moment once you have locked a model into place, you are restricted to rotation and up/down. Tapping will re-position the model but this is some what inaccurate when you want to position it in space accurately.
Click here for a youtube video which demonstrates what I mean. I had created a carpet tile design layout model, then used AR to superimpose over the existing flooring in the client’s library space. This was done utilising a different iOS AR app which allows this type of movement for accurate positioning.