Before you get your hopes up, Goldblog, via Aluf Benn, interprets it as a sign of increasing anti-Iran hawkishness in the Israeli cabinet. Netanyahu did not like the Mossad's recent statement of the success of Stuxnet and the impact of sanctions.
This article available online at:
http://www.theatlantic.com/daily-dish/archive/2011/01/baraks-departure-from-labor/177111/