I have a P3 standard. As you know the RC can only hold a mobile device. I'm wondering if there's any accessory for P3 standard RC to hold tablets instead of only smartphone.
One of the first things I did when I got my P3S was throw away the flimsy smartphone holder that came with it and replace it with one of these from Ebay:
The arm was a little too short, though, so I couldn't tilt my iPad Mini towards me without it interfering with the throttle, so I got an Inspire 1 tablet holder and I couldn't be happier with it.
If you're comfortable with opening up your remote and drilling a hole in it the Inspire 1 holder is very easy to install.