Why Bitfinex is at 1263 and Bitstampt at 1210?
Because people cannot get their money out of there with wire so they are buying bitcoin and getting out of there as fast as they can, I also suppose that we are seeing something similar to what happened in the past with Mt. Gox.
That could happen. However, it seems the spread has reduced a bit.
Instead of around $100 in difference, it's now around $80. It doesn't mean anything unless the premium will drop further in the coming days. If that would happen without public notice, then the chances are high that certain entities know something that others don't -- insider trading. MtGox eventually didn't allow people to cash out anything -- no coins, no funds. As long as Bitfinex allows people to cash out digital currencies, people will not panic.