goText is a free software for Mobile Phones to send free SMS messages over GPRS/EDGE/UMTS/WiFi connection. It is coded in Java (J2ME) with MIDP 1.0 and CLDC 1.0 profiles, so it can be used an almost any java enabled mobile phone/device!
MIDlet client for helden-software
LibDreamSpeak is an example implementation of the TeamSpeak2 protocol (client-side) in Java. Some day it may be used as base for alternative TeamSpeak2 (mobile?) clients.
An opensource JAVA application for the Samsung Instinct to supplement the built-in calendar by syncing it with an email server.
WebPhone Mural Chat é um projeto que realiza comunicação (chat) entre uma página Web e um Celular. Ambos conectam à um banco de dados MySQL, que provê e armazena os dados do chat, utilizando-se apenas de uma Rede Wireless. O Workflow é Twitter
jSOAP is designed for mobile devices which runs a J2ME platform. With jSOAP you can deal with a webservice using SOAP. jSOAP is very usefull when you don't now before the application starts how is structured the webservice. No need of WSDL !