Fire is a fast, themable UI toolkit and XHTML/CSS renderer for mobile application and game development. It is an eye-candy alternative to the standard MIDP2 UI components that produces a superior UI result on all mobile devices.
TotalCross (totally cross-platform) is a mobile development platform for PDAs and smartphones.
It makes it possible to develop portable Java applications that can be deployed on a wide range of smartphones without any adaptation in the source code.