You didn't need the mouse to control the camera.
We have shortcuts to zoom in and out, so that's the Z, how about a an X and Y shortcut keys to rotate the the camera via a keyboard or alternative device, such as an analogue stick?
Also you know how when you place the mouse cursor over the locked icon of an object, the camera pans to look at whatever you've got locked? When I'm using a mouse that actually gets kind of annoying, but if I'm just using a keyboard I wish it would do it automatically when I cycle through locked targets.
So how about an option in general settings, to toggle the camera panning to an object just by having it selected in the overview?
Just some thoughts, because honestly I'm really liking the idea of playing EVE just via a keyboard, or alternative peripherals

fake edit, would also be nice to be able to put the camera in a position you desire, and press a shortcut to 'lock it' in place, so that when use the camera to orbit or pan to something, it spins back into a 'default' position. Like when you hold rmb to pan, and it snaps back in place when you let go.