Great idea guys! Just tested it, work like a charm!
for (int i=0; i <= 255; i++){
lcd.setCursor(0, 0);
lcd.write(i);
lcd.setCursor(0, 1);
lcd.print(i);
delay(200);
}
This code went though page one that in the datasheet called "ROM Code: 0A". It seems to scroll down columns from top to bottom starting with the column on the left and then through columns left to right. There are all the usual ASCII characters followed by two empty columns and there is also basic set of japanise kana.
Thats definitely progress! There are also "ROM Code: 0B" and "ROM Code: 0E" with Cyrillic, special German, French and Greek characters and all kind of weird and wonderful stuff as well 