Yen crosses have jumped, USD/JPY up 50+ points in moments
I got an ear to the ground ... not hearing anything yet (beyond someone hoovering it :-D )
OK ... intervention chatter (a ring around at least) - only unconfirmed chatter though
ADDED: From the comments, below ... Larry Summers says the BOJ may be interested in buying foreign equities .. thanks to Shigeo Ichikawa in the comments
Yep, that'd weaken the yen!