Limiting Eminent Domain
The Ohio Supreme Court did it. The skinny at the Volokh’s:
We hold that although economic factors may be considered in determining whether private property may be appropriated, the fact that the appropriation would provide an economic benefit to the government and community, standing alone, does not satisfy the public-use requirement of Section 19, Article I of the Ohio Constitution.
Update: Another Volokh (I can’t tell them apart) has a lot more.