Any recommendation for a portable small rice cooker that can cooks rice porridge and soup?

I used an electric lunch cooker to prepare meals for my baby and toddler. http://list.qoo10.sg/item/ELECTRIC-LUNCH-BOXES-LUNCH-BOX/442323788 It works so well! Able to steam dishes and cook rice/porridge at the same time. It's light weight and portable. If you are travelling, you can consider bringing it along too!