Nitpick: EC2 (and AWS) isn't PaaS. It's IaaS. I think this is an important distinction. Most PaaS (like Heroku, App Engine, etc.) takes away the need to play ad

Nitpick: EC2 (and AWS) isn't PaaS. It's IaaS. I think this is an important distinction. Most PaaS (like Heroku, App Engine, etc.) takes away the need to play administrator and lets you focus on your code, less your infrastructure. On the other hand, IaaS like AWS is closer to a smorgasbord of components you might want to use to build stuff.