Amazing. Another huge reason to go into VPC with AWS. Their use cases they list are all good and valid (at least two apply to me personally). Additionally, thi

Amazing. Another huge reason to go into VPC with AWS. Their use cases they list are all good and valid (at least two apply to me personally). Additionally, this should enable some decent HA options, along the exact same lines as VIPs (except not as fast, most likely). I'm looking forward to going to work tomorrow to play around with how long it takes after hot swapping ENIs for traffic to flow to the new instance, since for managing servers purely in AWS, this looks to be a beautiful option for server-level HA with a hot-standby. Unfortunately, this does add even more domain knowledge necessary to jump into VPC (which is already a very non-trivial affair for those who aren't very familiar with sysadmin work/networking in general). I'd have to say this sounds like my favorite feature launched this year behind VPC.