I was in Woolworths yesterday and they had whole morwong (slatey bream, mother-in-law fish) listed as sweetlip. I was pretty unimpressed and looked up the species on the DPI's Fishweb site.
I was amazed to find that slatey bream ARE actually classified as painted sweetlip -- although I'm sure many of you already knew this. I had heard that grassies and red-throats had been officially put under the 'emperor' umbrella under the new naming rules, but it was still a shock to hear morwong called sweetlip... it felt like heresy!
Anyway, it's a warning to be careful when ordering sweetlip at a restaurant or fish & chip shop. I know slateys are edible, as I have tried one myself, but they're a poor substitute for an emperor species.