JUST BEFORE IRISH daybreak, Jyri and crew demonstrated Jaiku running on Google App Engine (GAE). Although there are detractors with that infrastructure, it's a development environment that enables anyone to develop Web services that can scale up to millions of users using Google's massive server infrastructure. If you want to be acquired by Google, why not program to their stack? If programmers embrace Google’s Python-only playground this summer, there could be serious implications for Amazon's competing service. The GAE confronts the highly successful EC2 infrastructure that Twitter borrows from Amazon, but the two services are distinct. With GAE, developers can focus on the business logic, with infrastructure and back-end services (i.e., authentication, storage, and related Google services) built-in and accessible within the Google network infrastructure via APIs. This translates into easy productivity gains for some programmers, but you have to know your Python.