Penang voters look set to stick with their opposition-led state government in Malaysia's general election next month, despite corruption claims surrounding their Chief Minister, and a pledge by challenger Barisan Nasional (BN) to save the north-western state from over-development and floods.

Last Thursday, Prime Minister Najib Razak, who leads BN, visited state capital George Town swinging a basket of promises, including toll-free passage for motorcyclists travelling between the mainland and Penang island, as well as thousands of low-cost homes, if the ruling coalition is voted in.