J2ME Polish

J2ME-Polish是一个德国人开发的开源项目，它提供了对 J2ME 一整套的支持。比如支持自定义UI，支持国际化，通过build.xml生成对各个厂商的手机，减少了程序员发布程序要对不同品牌的支持的繁琐劳动。支持采用css定制UI，自定义一套开发工具等等

Skylight: Open Source Mobile Widget Platform

Features

Lush: A UI toolkit that is highly flexible and that can be designed outside of the application's source code.
Janus: A toolset for porting mobile application to different handsets and different technology platforms.
Touch: Technology for accessing server side content and communicating with remote parties.
Trunk: A persistence solution that allows you to load and save complex data with a single line of code.
Marjory: Our community maintained device database.