Seems Amazon wants to fight it out with Google, by matching the new services with Google App Engine's free quota.
$0.10 per thousand in SES -> $0.0001 per email recipient // Same as in GAE.
You can send 2,000 messages for free each day when you call Amazon SES from an Amazon EC2 instance directly or through AWS Elastic Beanstalk. // Same as in GAE.
This, along with the recent AWS Elastic Beanstalk release and Amazon's intent of making Java hosting easy and without restrictions (http://news.ycombinator.com/item?id=2119104) all point to the day when I will be able to upload my Python app on GAE directly onto a pre-configured Amazon service (possibly making use of AppScale or TyphoonAE), which internally uses all these new services with free quotas.