Open Source Software for Mobile Phones

kXML is a small XML pull parser, specially designed for constrained environments such as Applets, Personal Java or MIDP devices. kXML 2 is based on the common XMLPull API. It features cursor API instead of event objects, leading to a reduced footprint and less object creation overhead. kXML 3 will split the parser and API support available in versions for both, XmlPull and StAX.

kXML also supports WBXML (WAP binary encoded XML), which allows to parse WAP or Wireless Village content.

Related Articles:
[IBM Developer Works]:
Using kXML to Access XML Files on J2ME Devices
[DevX]:
KXML: A Great Find for XML Parsing in J2ME

JSch is the pure Java SSH2 implementation developed by JCraft under revised BSD license. It has been already widely adopted by several open source projects, including Eclipse, Apache Ant, etc., and several proprietary softwares from huge companies like IBM.

JSch for J2ME is available on both J2ME CDC and J2ME CLDC/MIDP2.0.

kvmjab is a Library for communicating with the Jabber Instant messaging system from either Java 2 Standard Edition or Micro Edition.

StealthMS is J2ME midlet for sending SMS through operator email2sms gates. E-mail are send through GPRS/EDGE through HTTP servers or directly through SMTP. Regular messages (through SMSC) are also supported. Midlet includes flexible configuration and filter, messages history, access to phone address book.