PaaS interesting comparison

Recently I saw a ppt about Paas comparison.It compares and contrasts leading PaaSes on multiple dimensions and feature sets to see where CF leads and lags.

Here we choose the six popular Paas to compare.

a.Microsoft’s Azure
b.Google App Engine (GAE), GAE4Business
c.Amazon AWS+, i.e, EC2, Beanstalk, + services
d.Heroku from SalesForce.com
e.OpenShift OSS PaaS from RedHat
f.CloudFoundry OSS PaaS

We will choose eight areas for comparison.
(1) workloads
(2) tooling
(3) integration services
(4) SLAs
(5) datastores
(6) programming models
(7) management
(8) miscellaneous