aperture only tell half of the story la.. not much at all, probably last thing you wanna compare as a capable camera.. sensor, user interface, end jpeg quality plays an equally important role

Yes it's smaller aperture lens is expensive, but there's other thing to look after too,

leica f1.8 and canon f1.8 lens for example it's not always better.
Also we would not want to use large aperture lens to shoot scenery as less DOF meaning some part would be blurred out..

In a camera phone, where the sensor is puny tiny small, there's not much use of having a big aperture.
btw sensor is sensor, aperture is aperture.. then there's shuttle speed and ISO, which is the triangle rules of determining how good your photographs with turn out.. skill and composition ..

Technically more light would go into it, but not necessary a good photo is taken.
under assumption ISO and shuttle speed is the same (same camera), lower aperture would makes a brighter shot. But usually aperture is used to manipulate DOF (to determine how much focus you want to create a blurry back or foreground) rather than how much light you want.. Unless under extreme lighting limiting scene such as indoor event where we cannot afford to turn on flash and lighting is really dim..

sometimes we purposely jack up the aperture (as in higher f number) to make the shot requires a longer shuttle time (milky waterfall shots anyone)?

erm.. not sure if camera phone allows manual control for this

Well I'm not that good in photography either, just my 2cents..

need microscopic eyes.. haha don't hear what the reviews says.. see one yourself..

can I take photo with the word cheese? voice control?