The Tallahassee system is interesting because it doesn't make any long-term requirements for affordability or public subsidy... it just says that some units should cost less. This kind of opening of the marketplace to all consumers is what I'd like to see. On the other hand, I don't see any mention of anything that compensates the builders--usually it's a density bonus--so their argument about a "taking" might be valid. We'll just have to see what the court of appeals thinks!