We use Google Apps for business. Out intranet is created using Google sites and we use an open source web based software for HR.
We want to get rid of the HR portal and build our own that integrates with our intranet. At this point we are looking for a very simple application to cover the basics needs. We have created a requirements document on what we need.
Application should integrate with Google Apps and it should write/read data into a cloud based database that sits on Google's cloud.