(after several years of trying to enact legislation, effective Sept. 1, 2011, S.B. 18 specifies that eminent domain can only be exercised for "public use" (which is undefined in the Act) and replaces all statutory references to "public purpose"; Act adds public hearing and notice requirements and voting mandates to exercise of eminent domain; Act adds specific requirements for bona fide written purchase offers; Act requires that all public and private entities wanting to exercise eminent domain power to submit letter to state comptroller for review by TX legislature; Act provides landowners with statutory rights to repurchase property that doesn't meet "public use" requirement).