Roulette in Macau does not have a big share of the table game market, but it isn't difficult to find if you're looking for it. I would estimate that roughly 3% of the table games in the public casinos are roulette. In my extensive canvas of the Macau casinos in August 2007, 100% of the roulette games were single zero. There is no surrender or half-back rule if the ball lands in zero.
The house edge on every bet in single-zero roulette is 2.70%. There is no betting strategy to increase or decrease this house advantage.
For more information on roulette, please visit my companion site, Wizard of Odds.