Stronger GPS on the way?

Does anyone know anything about the US Chamber of Commerce's recent announcement of L2C GPS capabilities on the way? I've been searching for some extra info for a bit, and it seems that there's at least one satellite up there broadcasting on this band. Are there actually more? What's the time table? To summarize, L2C is to be the civilian version of the military's L2 frequency, which is transmitted at higher power, meaning better reception under cover, through walls, in cities, valleys, etc. There's a pretty decent summary here