iTerm2, at least, can show underlines where you'd expect squiggly lines in GUI v...

		swift on Feb 20, 2013 \| parent \| context \| favorite \| on: Vim After 11 Years iTerm2, at least, can show underlines where you'd expect squiggly lines in GUI vim. It's not as nice as the squigglies but it's pretty functional in practice.