While there’s still a lot of uncertainty about the viability of platform-as-a-service (PaaS) offerings as a distinct market apart from infrastructure-as-a-service (IaaS), there is no doubt that PaaS technologies are becoming more accessible in the cloud with each passing day.
Advocates of platform-as-a-Service offerings promote how easy it is to deploy and manage applications without having to be - or to hire - a system administrator. But as with most things, there are inevitable trade-offs. The less you have to manage the platform you deploy to, the more you're tied to the stack the PaaS provides. Today AppFog adds a duo of supported services to their stack, bringing new database and email options to the company's developers.