Hmm - makes me wonder if they are aware of the fact that MtGox does not let its customers to withdraw money (for nearly two months now with some sporadic transfers for small amounts to keep peoples hope) - the price at MtGox is completely distorted by that why Bloomberg should use it?
I'm happy for bitcoin, in general, but slightly fearful to see that now investment banks are potentially going to get involved. A group known to have the money, and experience, to game financial rules at will.
Bloomberg terminals may be unfamiliar to many in this community, but this is a Big Deal(tm). Those things are not cheap to lease, but you can be sure as hell there is a reason serious traders shell out for them.