Slick Slick is instant messenger application for Symbian mobile devices supporting ICQ, Yahoo, AIM (more to be added later)
EQO (S60 3rd Edition) Chat on the go using MSN, AIM, Yahoo, Google Talk, QQ, ICQ and Jabber, or call and text anyone in the world at super-low rates
phIRC PhIRC is considered as beta as many things are missing I'd like it to have
Ovi Contacts Ovi Contacts is a place where you can find your friends, see where they are and what they are up to
iSkoot Delivers the rich features of Skype to your mobile phone!
Frim Thousands of interesting people are online in your country and ready to chat and make friends with you.
It is very easy and fast to meet new friends in Frim: just go online, fill your profile, specify your hobbies, upload a photo and be ready for new people to visit you