Script Summary: Adds line breaks to SMS messages.
If you use text messaging in Google Voice, you may have found that SMS messages don't display with line breaks. This script adds one line of CSS to the webpage that fixes that. (Hopefully, Google will fix the issue at some point, at which point this script won't be needed anymore.)
If you use the mobile site, use the script at http://userscripts.org/scripts/show/128871 instead.