With Pidgin, you can instant-message your buddies from one buddy list, whatever network they may use. Big green button installs only Pidgin. Installation help: http://pidgin.garage.maemo.org/
Mauku brings micro-blogging into Maemo environment. It currently supports Jaiku and Twitter. The application works in all Nokia Internet Tablet devices, i.e. Nokia N810, Nokia N800 and Nokia 770.
Features include also kinetic scrolling and speech synthesizer!
A tool that uses the GPE Contact Database and libgnokii to dial numbers from the IT to your mobile phone via bluetooth
you have to create a valid .gnokiirc file in /home/user