Just came back on SQ doing SYD-SIN-HKG. The service is much improved since I started this thread back in December 2009.
However, two things caught my attention. First, the business class (silver) lounge at HKG does NOT have toilets inside. This is odd given that HKG is the busiest city for SQ outside SIN. Second, on the midnight flight from SIN-SYD on the A380 last week I was told that I could have either a supper now or breakfast in the morning, but not both! It is not the way to impress the customers and I am surprised that SQ does not understand this.
Overall, I found SQ much improved.