Been longing for a fruit I first tasted in Macau a few years back... looks a lot like grapefruit (skin is more yellowish than green) but the meat is sweet -- not bitter/tart like grapefruit. I spotted something in Oakland Chinatown last week that looked just like it and purchased one, but alas! I came home and found out it was just grapefruit. Anyone know what it is called and/or where I can find it? Thanks!