This software is a PSP porting of SUN open-source JavaME implementation: phoneMEFeature. The words below is copied from phoneME's website to describe the project:

The objective of the phoneME project is to further expand the usage of Java? Platform, Micro Edition (Java ME platform) technology in the mobile handset market. The project scope includes a focus on the mainstream feature phone segment with phoneME Feature software, and the emerging advanced phone segment with phoneME Advanced software. Our goal in making these technologies available to the Mobile & Embedded Community is to reduce implementation variation, increase the rate of innovation and enable new devices to leverage the power of the Java ME platform.

You can also refer to the original website from here: https://phoneme.dev.java.net/

The goal of pspkvm is porting phoneMEFeature to Sony PSP game console. If you're seeking for phoneMEAdvanced porting on PSP, please take a look at the other project here: https://sourceforge.net/projects/pspme

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Fetures
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- Nokia UI APIs (partial)
- WMA1.1(JSR120) stub
- Networking (By PSP's WIFI)
- Java AMS with MVM supporting
- Several input methods: QWERTY/Abc/Symbol/...
- Directly browse and run from local jad/jar file, and auto-install without interrupting
- Jpeg support
- MIDI & Wave audio playback support
- Device emulation. You can choose device type to emulate for different screen sizes and key codes, either at installation time or from "Select device" menu
- Change default key assignment for specific application.
- JSR75(File Connection)
- Virtual Keyboard Input
- Chinese Input
- JSR179
- FreeType2 font support

Changelog:
- FreeType2 fonts support. (Please see "Running tips: Use FreeType2 font files")
- Bug fixes:
1) Mess display bug of NokiaUI for some games, e.g American Army.
2) Fix PlatformRequest() issue of not launching Installer for Jad/Jar files.
- Add missing character in Chinese Input Method. Now full GB2312 charset is supported.
- Optimize alpha-blending of drawRGB() with VFPU instructions.