Joined Cases T-254/00, T-270/00 and T-277/00: Judgment of the Court of First Instance of 28 November 2008 — Hotel Cipriani and Others v Commission (State aid — Relief from social security contributions for firms in Venice and Chioggia — Decision declaring the aid scheme incompatible with the common market and requiring recovery of the aid paid out — Admissibility — Individual concern — Conditions concerning effect on trade between Member States and competition — Derogations under Article 87(3)(b) to (e) EC and Article 87(2)(b) EC — Categorisation as new aid or as existing aid — Principles of legal certainty, protection of legitimate expectations, equal treatment and proportionality — Duty to state reasons)