I just had to come to make a small update; i've had all the miners running now for about 10+ hours (3,6MH/s, 850mhz) without any problems or crashing with raspian wheezy & cgminer. So yeah, although it took time to get the miners, I really think to include raspberry pi instead of the controller is a brilliant idea!
They do make a lot of noise I think- now if only there was a way to adjust the fans programmatically..
You can probably put some resistors to downvolt the fans or just unplug them completely. That's what I'm planning on doing, my GPU fans are loud enough haha
That's what I actually ended up doing- I unplugged the fans and now i'm in process (as in the PSU in in my bag right now) of replacing the included loud PSUs (they're almost as loud as all the 10 units! And they make the room smell like something you're not supposed to be inhaling too much:) with a better, quiter and meant to be in a room you're living in -type.