I did try installing a "Learn Japanse" package :ph34r:, got it decompressed, installed the files and compressed again. The icon appeared in the menu, although it didnt work :huh:..
Just got mine :), but i was really surprised when my 2200mAh batteries were almost empty after an hour :o
edit:
nevermind, played the whole morning with the same batteries, guess is should just ignore the warnings :unsure: