The Winklevoss twins will never let Bitcoin die. It's their new favourite toy. And their ego is tied to it.
Also MtGox has a vested interest in Bitcoin to stay alive & high.
Will that be enough - long-term - to hold Bitcoin over $100? I doubt it ...
The current moves with large buys trying to entice frenzy buying suggest some big holder(s) is trying hard inversing the downtrend.
Gox who get their income in btc value, free from any control or regulation, can even try to sustain a ' high' price with 'fictitious' dollars should their company survival depended on it.
Virtual currency paid for by virtual dollars, wicked