Zaurus Overclock Tool - This application can change CPU (and SDRAM) frequency.
It is possible to set speed from 162.2 MHz (save battery) to 221.2 MHz (app. 15% faster).
Use at your own risk
HomeTools is a small hildon home widget which display some useful information like available memory, space storage, ip or load average on your nit "desktop"
Export All Certificates - Currently Firefox and other Mozilla products do not provide an easy way to export all root certificates. This extension adds an Export All button at the Authorities tab in Advanced - View Certificates, which allows to export all certificates at once
