I recently updated downward on the important of bitcoin when Brandon Rienhart noted to me that the primary vulnerability with bitcoin is likely to be user vulnerability rather than scheme vulnerability
By "user vulnerability" I take it that you mean that a "hacker" could break into the computer where the bitcoins are stored and steal them.
Well, it is not as if user's of conventional bank accounts are not similarly vulnerable.
Of course, but in general I would expect it to be more difficult to hack into an organization that can afford to spend more resources on security than on one who can afford to spend less.
We've started a habit of creating periodic Bitcoin threads to confine discussion thereof to those threads and prevent excessive proliferation of Bitcoin topics in the discussion section. Here is a link to the last one, which links the other discussions. Lot's to talk about, and another bounce in Bitcoin's value (up to 33 then down to 24), so share your links and thoughts!