Will the Bank of Japan intervene in the currency market?

In a very unusual move, BoJ Governor Shirakawa said two days ago, 12.08.2010:

“There are substantial fluctuations in the foreign exchange and stock markets mainly against the backdrop of growing uncertainty about the outlook for the U.S economy. The Bank of Japan will carefully monitor such developments and their effects on Japan’s economy”.

Although it was always expected that they try to talk down the yen at rates around 85 (USD/YEN), the unusual way of the latest statement of the BoJ makes the possibility at leats morel ikely that they will intervene if USD/JPY continues to decline to levels under 84.80.

I lean towards a long in this currency pair anyway, out of fundamental reasons and of bullish divergencies in the RSI (daily and weekly charts, more reliable than short term charts) and am long this pair with my semi-martingale fibonacci-strategy since some time, and these statements only makes me more comfortable keeping this trade.