Pretty much everybody has now. Also, almost everybody has said it's a bit lacking in power.
There was an STi concept, wasn't there? I remember it being non-turbo, though.
I also remember... GReddy getting a BRZ to play with? (Maybe it wasn't GReddy, HKS or something) and they planned on a turbo version.
The more power argument is never-ending across the world, but most people need a little perspective. It has prius tires, after all.
UDSM E30 M3: 192 horsepower, 2,865 lb, $35,000, 8.1s 0-60, .82g, 17/29 mpg ($66,272 in today's money!)
2013 USDM BRZ: 200 horsepower, 2,737 lb, $26,500, 7.3s 0-60, .92g, 22/30 mpg
I know they handed out some of the cars to tuners. One thing I find interesting is when the motoring press talks to the BRZ engineers, they all hint at boost, when they talk to corporate 'reps', they all say no plans for boost. With 2013 spelling the end for the Legacy GT, Subaru's down a turbo 'sporty' car.