[samolang]

My understanding is that both bitcoins and cash are stuck at Gox. But you are still able to do internal bitcoin transfers within Gox. Person A transfers their "gox" bitcoins to bitcoinbuilder.com's "gox" bitcoin address, person B transfers their "real" bitcoins to bitcoinbuilder.com's "real" bitcoin address, bitcoinsbuilder.com transfers the "gox" bitcoins to person B's "gox" bitcoin address, and bitcoinsbuilder.com transfers the "real" bitcoins to person A's "real" bitcoin address. No bitcoins enter or leave Gox, they just trade hands within Gox using bitcoinsbuilder.com as the intermediary.