I'm absolutely loving playing the game with the Oculus headset on, I think Frontier have just about nailed the usability and cockpit is very comfortable
My suggestion is around the non-cockpit display screens. I think they would be more comfortable for rift users if they were curved, or at least angled like the cockpit displays, so that reading the text at the edges was a bit easier. This would apply to the galaxy map, system map, and starport services. The other thing that you could do, is make the the text colour selectable. As has been noted elsewhere green is much more readable on the rift, and there are some hacks that allow this, but they come with side affects, like enemies also becoming green.
My suggestion is around the non-cockpit display screens. I think they would be more comfortable for rift users if they were curved, or at least angled like the cockpit displays, so that reading the text at the edges was a bit easier. This would apply to the galaxy map, system map, and starport services. The other thing that you could do, is make the the text colour selectable. As has been noted elsewhere green is much more readable on the rift, and there are some hacks that allow this, but they come with side affects, like enemies also becoming green.