RetroArch has a core called "MAME (Current)" which sometimes handles old portable binaries, but VXP support is experimental. For most users, the standalone emulator "FreeJ2ME" on PC is a better choice.
The future is in the hands of archivists. Projects like the (which preserves Flash games) have inspired similar efforts for Java ME and BREW. As of 2025, community tools are slowly becoming more user-friendly, allowing a new generation to experience titles like The Dark Knight mobile game or Pac-Man Championship Edition in their original VXP glory.