Hey man -- good stuff .. question: "By default all data in S3 is encrypted. When we get to S3 labs you’ll learn more than enough about S3 encryption to make you unpopular at parties. The option on this page allows you to set and use your own private key. This will increase costs and, IMHO, doesn’t really add much security. It also adds friction to handling log files. So let’s turn it off (and if you disagree, please drop me a line or comment on the blog or KZfaq)." --- what 'friction' to log handling?