Scarabsf1 blog is a really good blog about the technical developments in Formula 1. His depth and detail into the technical aspects of the new designs coming out from all the teams is impressive.
This is the latest development from Mercedes. They have figured out how to stall the front wings by using the rear DRS.
This is questionable within the new rules, but it looks like Mercedes has figured out a very creative solution.
Head on over to Scarbsf1 and have a read on a very impressive bit of technology.