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Can power itself and the Raspberry Pi
on 13 September 2012
I'm happy to say that it works with the Raspberry Pi - it can power itself and the RPI.
So one cable goes from the hub to the RPI's power-in-micro-usb port.
Another cable goes from the hub's USB B socket (the squarish one) to the RPI's USB port.
This way, you only need to use the hub's supplied power adapter and it powers both the hub and the RPI.
One thing to keep in mind - sometimes it can be a bit fiddly if you attempt to pull the hub's power and put it back in. I've found that I had to remove the cable going to the RPI's USB port, start the device, then plug the cable back in. YMMV, this may be a problem that only I am experiencing.
Update - June 30 2014 - I have used this continuously for about 2 years now without turning it off. It has powered a Raspberry Pi, also for 2 years.