VMware: I already have the most popular virtualization software and I will integrate Spring Source and create the best PaaS offering.

Amazon EC2: I am extending my cloud facility to a virtual private environment so that you security concerns are taken care.

Microsoft: I am giving you a platform which is very similar to what you use so that you can seamlessly extend your application to the cloud and even the developers can continue to use the same set of tools.

Different vendor strategy

Here is a diagram which shows the strategy of some of the major player in the Cloud Computing space to counter the questions and doubts:

Google App Engine: I am creating a platform with which you get access to my complete infrastructure – practically unlimited processing power & storage and all my existing services.

What do I think?

This is my view for the longer term – 3 to 5 years.

To take full advantage of the power of cloud computing we need to break away from traditional programming paradigm – thinking bounded by …

1. …sequential processing
2. …relational storage
3. …the physical boundary of a machine

And, I think Google App Engine is in the best position to provide solution for the new paradigm.