From what I know of it, which amounts to us talking about it in my property class for about twenty minutes one day, she is entitled to half of it, regardless of whether its a community property state. Some states split everything up evenly, even property that one person owned prior to the marriage. But I'm pretty sure that all states will split property that was acquired during the marriage, with the possible exception of things like family heirlooms that were handed down, and such.
On an unrelated, but interesting note, if you work to put your wife through medical school, you are not entitled to any of her increased earning potential if she decides to ditch you once she gets the degree. I share only because I found the reasoning kind of fascinating. You cannot apply property rules to split up the economic value of her medical degree, because her medical degree is not property. All property is devisable. But your wife's expertise will go to the grave with her. She cannot put her medical degree in her will to be inherited by her child, it cannot be transferred, therefore is not property.
Funny. Just one of those things where you're like, "You know . . . that actually makes a strange kind of sense, doesn't it?".