I enjoy using Vim and like it better than IDEs on most points. One common IDE feature that I miss, though, is inline diff highlighting:
In this example changed lines are highlighted in blue and entirely new lines in green. Red for removed lines and beige for lines with changed whitespace are also common colorings. I know of tools that can show a diff in two windows, but is there any feature or plug-in that can do it like this? Preferably compared to version control.