If MTGOX was solvent, then Mark would be publicly proclaiming from the roof tops of the Bitcoin world their solvency as well as proof via a simple bitcoin transfer to a new address to prove they have all the funds (ok ok or multiple transfers assuming they keep their BTC in separate wallets). Seems to be a pretty trivial matter to prove solvency, yet MTGOX has chosen not to prove this publicly.
If MtGox started treating their cold storage irresponsibly like that, I would be out in a puff. This is obviously a technical glitch
all evidence points to a technical problem and MtGox should fix the problem instead of throwing cold wallets around. There is a bitcoin core developer in #mtgox-chat right now buying MtGox BTC at 90% of face value. Because people who knows how bitcoin works under the hood can easily see this is a technical glitch and nothing else. Of course you will find manipulators like you spreading FUD and offering much worse rates in the same channel. (And useful idiots who are helping the manipulators spreding FUD, while stupid enough to not take the profit from people who run into their trap.)