As the Campfire one is over, Google official announced their new engine called the “Google App Engine” App Engine allows developers to easily create and mantaine applications. There will no server headaches etc.

All you have to do is build the app and upload it to appspot.com domain for free. A free account can be used up to 500MB of storage and enough bandwidth for about 5 milion page views a month. The App engine in near future will be providing additional resources for fixed price.

Some Key Features of the App Engine is the Application Environment :

  • dynamic web serving, with full support for common web technologies
  • persistent storage with queries, sorting and transactions
  • automatic scaling and load balancing
  • APIs for authenticating users and sending email using Google Accounts
  • a fully featured local development environment that simulates Google App Engine on your computer

The App Engine Runtime Environment in coded on Python version 2.5.2. The Engine as well include service API for integrating applications created with Google Accounts.

As every good things have limitations, TechCrunch has listed out some limitations currently faced on Google App Engine.

The service is launching in beta and has a number of limitations.
First, only the first 10,000 developers to sign up for the beta will be allowed to deploy applications.
The service is completely free during the beta period, but there are ceilings on usage. Applications cannot use more than 500 MB of total storage, 200 million megacycles/day CPU time, and 10 GB bandwidth (both ways) per day. We’re told this equates to about 5M pageviews/mo for the typical web app. After the beta period, those ceilings will be removed, but developers will need to pay for any overage. Google has not yet set pricing for the service.
One current limitation is a requirement that applications be written in Python, a popular scripting language for building modern web apps (Ruby and PHP are among others widely used). Google says that Python is just the first supported language, and that the entire infrastructure is designed to be language neutral. Google’s initial focus on Python makes sense because they use Python internally as their scripting language

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