Unity crashes when I move the cursor over it http://askubuntu.com/q/10568/235
Unity crashes when I move the cu... http://askubuntu.com/q/10568/235
The ellipsis is only needed for longer titles, but I included it here to show what that would look like. Using a "SE short link" automatically includes the domain name and saves 7 characters over "t.co" (4+" - ") in your suggestion, giving room for "q/" and the user ID.
It does look a little weird without any punctuation at the end of the title before the URL (in the first example above), but many question titles end with a question mark. Including a hyphen if they don't end in punctuation would be my preference.