Looking at Penang island, how much more can you do? The future of Penang is the mainland. From inception until now, the Penang Development Corporation (PDC) has placed focus on the economic integration between island and mainland. This is clearly shown by PDC's effort since 1970 in selecting the location of township developments on the island (Bayan Baru) and mainland (Seberang Jaya and the most recent Bandar Cassia).