Just noticed this on the news tracker, Nick Wirth has been fired by Virgin after a pretty rotten start to the season. This also includes severing ties with Wirth Research. Interesting comments in this article about some sort of technical link up with McLaren - as Force India has (had?).
http://www.autosport.com/news/report.php/id/91924
http://www.autosport.com/news/report.php/id/91924