Simple CRM is extremely simplistic Customer Relations Manager. It is targeted for small business companies or self-employed people. It allows to track your customers and their orders.
The main principle of application is Simplicity, not number of features. If you need huge CRM application with gillion of features, you should browse for another one. I originally wrote Simple CRM for my wife, after short research of open source/ free applications. There are many of those, but all of ones I considered are huge applications that require running web server and database server - not an option if you need to set it up on Netbook.