Palringo is an novel Mobile Instant Messaging client for mobile phones. Palringo allows you to instantly exchange text, photos, and vocal IMs with groups or individuals.
With Palringo, you can keep in touch with friends on popular instant messaging services such as Jabber, Yahoo, ICQ, MSN, Gadu-Gadu, AIM, and Google Talk
Talkonaut (J2ME) is mobile free calling, VoIP enabled, Google Talk like application for your mobile device. Talkonaut supports Jabber, Google Talk, ICQ, MSN, AIM and Yahoo networks both for chatting and voice calling. This native application allows to setup free VoIP calls over data channel, like: GPRS, EDGE, 3G or WIFI