Seventeen new billionaires have pledged to donate at least half of their estates to charity (probably after being cornered by Warren Buffet and Bill Gates at a party). In the prior batch, we calculated, 19 of the 40 generous households were Jewish. Nearly half!In this latest round, Jews include: Sydney Kimmel; Carl Icahn; Theodore Forstmann; Nicolas Berggruen; David and Barbara Green; and Facebook co-founders Mark Zuckerberg and Dustin Moskovitz (known in my house as “the other Facebook guy”). So 7 out of 17! 26 out of 57! Not bad at all, and good for them.Zuckerberg and Icahn Join Buffett and Gates on Giving Pledge List [Dealbook] Earlier: Generous Jews