When we saw Eurogamer's report that the PS Vita Facebook app had been pulled from PSN, it was only in Europe -- the US PSN store still had the app available for download. But as we began to compile this post, a funny thing happened: the PS Vita Facebook app was pulled from the US store, too.
So we contacted Sony for the reason why it was pulled. "The Facebook application for PS Vita is not available at this point in time," a Sony rep told Joystiq. "We are currently looking into this to restore it to normal operational status. We will announce further details when ready." There's currently no timetable for the app's return, but as soon as we know something, we'll let you know.