Apime is a framework to offer more funcionality to J2ME/MIDP. The core is the user interface, with basics components to make applications with swing structure.
Also it includes classes for file manage and customization (skins, internationalization, keyboards for differents languages and mobiles, …)
The MicroI18N Library is an open source implementation of Java Specification Request - 238 the Mobile Internationalization API, version 1.0. This library implements the resource manager for applications, the Formatter and StringComparator are not implemented yet, but new versions of this library will include it.