I have just downloaded the Gameboid App from SlideME, I guess this is the most recent version, since it's from yongzh's account himself. Though, two games of mine wont's save! I have tried the following roms that worked:
The games that won't save, are:
Pokemon Mystery Dungeon - Red Rescue Team
The Legend of Zelda - A Link to the Past & Four Swords
I have tried to save it with all the different ways of save types (Automatic, EEPROM, SPRAM, Flash and Flash 128KBit), but it didn't work out much better. If anyone could find me an answer, I would be really happy!