iPhone Levitation PSD
If you’re planning to showcase your app’s design in the most unclear way and from the most awkward angle possible, then this is the PSD for you.
But hey, I’ll admit that the rendering looks great and the PSD is free to use without any license involved. That’s great!
Helpful hint: Dribbble users are nice. If the license is unknown, it is usually because they forgot to mention it explicitly; not because they were being stingy. Ask nicely and they will probably allow you to use it.