It's very easy to change the default ebookstore webpage to
www.google.com.
Just change the name of the default webpage in the QT main file to the new one, for example
www.google.com.
Repack the firmware following the instructions in the readme file and install it. It works for the E60 and the E65.
It's also posible to activate the email client for the E60 / E65 changing the parameter config in the QT compiled application.
Changing this parameters and the default webpage is ilegal cuz not are part of the firmware GPL licensed files.