I am a user of Amazon Simple Storage Service for US region since 2007. Of source I am excited S3 is coming to Singapore. Generally I am happy with S3, but independent testing of new S3 APAC region is necessary 
Independent uptime report of a bucket of S3 (APAC – Singapore) – report is not accessible since May 2011
Official status of S3 (APAC – Singapore)
Notes:
- Use Rightscale dashboard to add a small file to S3 Singapore region.
- New bucket for APAC region may be hosted outside of Singapore for the first few minutes after creation.
- No relationship with providers used as I am in banking IT industry
