On the default grid view, if I expand my browser's width, I tend to end up with a lot of unused space. It would be great if I could select a field, such as "Title" to dynamically expand to fill that area.
I would add that I should be able to specify a minimum width for it as well. This way, if I were to reduce the browser's width, there would be a point (the minimum width) where it would stop shrinking and the page would be given a horizontal scrollbar, as some content would be forced off the page.