camera phones are  must-haves  four times more mobiles with cameras in them will be sold in europe by the end of 2004 than last year  says a report from analysts gartner.  globally  the number sold will reach 159 million  an increase of 104%. the report predicts that nearly 70% of all mobile phones sold will have a built-in camera by 2008. improving imaging technology in mobiles is making them an increasingly  must-have  buy. in europe  cameras on mobiles can take 1.3 megapixel images. but in japan and asia pacific  where camera phone technology is much more advanced  mobiles have already been released which can take 3.2 megapixel images. japan still dominates mobile phone technology  and the uptake there is huge. by 2008  according to gartner  95% of all mobiles sold there will have cameras on them.  camera phones had some teething problems when they were first launched as people struggled with poor quality images and uses for them  as well as the complexity and expense of sending them via mms (multimedia messaging services). this has changed in the last 18 months. handset makers have concentrated on trying to make phones easier to use. realising that people like to use their camera phones in different ways  they have introduced more design features  like rotating screens and viewfinders  removable memory cards and easier controls to send picture messages.  mobile companies have introduced more ways for people to share photos with other people. these have included giving people easier ways to publish them on websites  or mobile blogs - moblogs. but the report suggests that until image quality increases more  people will not be interested in printing out pictures at kiosks. image sensor technology inside cameras phones is improving. the gartner report suggests that by mid-2005  it is likely that the image resolution of most camera phones will be more than two megapixels. consumer digital cameras images range from two to four megapixels in quality  and up to six megapixels on a high-end camera. but a lot of work is being done to make camera phones more like digital cameras. some handsets already feature limited zoom capability  and manufacturers are looking into technological improvements that will let people take more photos in poorly-lit conditions  like nightclubs. other developments include wide-angle modes  basic editing features  and better sensors and processors for recording film clips.  images from camera phones have even made it into the art world. an exhibition next month in aid of the charity mencap  will feature snaps taken from the camera phones of top artists.  the exhibition  fonetography  will feature images taken by photographers david bailey  rankin and nan goldin  and artists sir peter blake  tracey emin and jack vettriano. but some uses for them have worried many organisations. intel  samsung  the uk s foreign office and lawrence livermore national laboratories in the us  have decided to ban camera phones from their buildings for fear of sensitive information being snapped and leaked. many schools  fitness centres and local councils have also banned them over fears about privacy and misuse. italy s information commissioner has also voiced concern and has issued guidelines on where and how the phones can be used. but camera phone fears have not dampened the manufacturers  profits. according to recent figures  sony ericsson s profits tripled in the third-quarter because of new camera phones. over 60% of mobiles sold during the three months through to september featured integrated cameras  it said.