How soon under Sony succumbs to the IDPF's epub and the rest?

Did anyone notice OSoft CEO Mark Carey’s IDPF-related observation that “OCF support” is in Sony’s “future plans”? True? And if so will that pave the way for full support of the IDPF standards? I continue to be puzzled why Sony’s BBeB format exists here in the States except as a way to lock in customers. Anyone at Sony care to comment? Meanwhile remember all the tens of thousands of Mobipocket titles and the plans of Mobi’s owner, Amazon, to release an e-book reader. Can Sony’s e-book store ever catch up? Better for Sony to stop playing format games.