Going by the picture in the article, I'd say this Info Wing thing doesn't work.
http://www.autosport.com/news/report.php/id/116942
Can't see anything on it.
Displaying tyre information is a little pointless I guess as you'll see from the tyre, but I think displaying the car's position could be good for those at the GP when it's not as easy to keep track of the overtakes.