via http://www.aep-emu.de/

Marat Fayzullin has ported his (commercial) GameBoy Advance emulator VGBA to the Android platform: VGBA for Android

Quote:
New in 3.7.4:
  • Enabled browsing from the file system root.
  • Added Russian localization.
  • Fixed landscape/portrait switch with Japanese localization.
  • Added config for Pokemon Green Leaf (uses 128kB FlashROM).
  • The save problem at the end of Pokemon Emerald has been fixed (please, test).