In Chrome 19 on Windows I don't see any apparent difference. Display is 96dpi at 1920x1200. I checked on my iPhone 4S and when I zoom in I can see a differenc

In Chrome 19 on Windows I don't see any apparent difference. Display is 96dpi at 1920x1200. I checked on my iPhone 4S and when I zoom in I can see a difference (that I might be missing on my desktop). It is incredibly subtle.