Registration for Gore-Tex Transalpine-Run 2012 (1.-8. September) has started. It's an Alpine stage trail run. They have two alternating routes: East and West. In 2012 it will be the East from Ruthpolding in Germany to Sexten in Italy. There will be eight stages.
They take only 250 pairs of runners (you are not allowed to participate without a teammate). The race will probably sell out quickly, so hurry.
I plan to run CCC (Courmayeur-Champex-Chamonix) at the end of August, so I'll pass this one.
You'll find a 42-minute video of Gore-Tex Transalpine-Run 2011 and other trail running races at Massive SportsTV.