For a person, who does not take snapshots of every day events, I am probably too interested in why other people take so many snapshots with their phones.

Why do I not utilize this functionality of my camera phone? First of all, I am not used to take snapshots regularly. I did not take occasional photos before digital cameras / camera phones became popular. In other words, when I see something interesting, my first impulse is not to take photo.

Secondly, if I plan to take photos (like when visiting somewhere), I will carry a dedicated digital camera with me (either SLR or small digital pocket camera with good enough optical zoom). Yes, camera phone picture quality is quite good already, but the optical zoom is still missing on many phones.

Third reason is that because of my work, I need to constantly switch phones and re-flash them. So if I ever take a photo with my camera phone, I will probably lose it during a sw upgrade, because I am not the fastest photo uploader around.

However there are millions of other people who day after day take digital photos and upload them on their computers or to Flickr to be shared with friends and relatives. And at least according to Flickr stats, also camera phones are used widely (no absolute stats of the share of camera phone pictures here though, although by browsing through a couple of brands one can see that dedicated cameras have much more daily users on Flickr site).

Also I have read through many papers about camera phone use (for example here,  here, here, here, and here). Still I do not know why other people take so many pictures and have thriving Flickr sites, whereas I have only my collection of photos from my vacation trips and nothing else.