I was considering getting one for a nexus 7 and torque pro, but there were a few concerns I had with it:
1. They don't make one to work with mylink radio trim.
2. The heat in sc would kill the tab in a day,
3. Fitment seems to be off a bit.
4. Screams steal me!
I would purchase one if they made one to work with mylink, and made it so the tab could be removed easily.
Oh... it's for permanently mounting your devices there. What would be cool is something that sits but stays temporarily in the useless tray we have there and offers a mount for ones GPS or other device..