This is the gallery section on my website. I implemented the navbar and tab bar like ARIA suggests, so tabbing will only select the active element and you can focus another item using the left and right keys. This seems reasonable to me.
For the image grid, I'm planning to use arrow key navigation here as well, so you can tab in, and the next tab key press will focus whatever comes after the grid. Arrow up/down/left/right will let you select any grid item.
Good or bad?
