[neilk]

> I would even guess that the majority of founders who are acquired by Google, Yahoo etc. leave in the first 12 months.

That is absolutely not the case.

You often don't even hear about most Google acquisitions, or you don't know what they were even working on until they get released as Google Egg Timer or something. And even after vesting a lot of acquired employees still stick around. Some of them have families by then.

Yahoo tries hard to make them quit in disgust, but even they hang on to founders longer than that.