nload images and the stability of the storage medium (nonvolatility over time and temperature). This brings us to the next topic. Camera-Phone Network Software Image data such as the date and time a picture was taken and the exposure used can be stored in an EXIF (exchangeable image format file). Devices that have GPS can add location information to the file, which can be stored either in a camera's memory card or sent with the image to be stored remotely. Camera phone network software addresses three requirements - image editing, image cataloguing and image management. These functions can, to an extent, be performed in the camera phone or digital camera but with either type of device, the expectation has to be that the images will at some stage be stored somewhere else. User-Centric Software A user can do image editing on a PC using PhotoShop or Paint Shop Pro - this is not software that you would want to load onto a portable device. These programmes typically take up at least 200 MB of RAM and 500 MB of hard-disk space. A cataloguing software programme (Photo Shop Album or Paint Shop Photo Album for example) will take up a similar amount of memory and you will also need to add some image management software. Microsoft Photo Premium sets up a browser SO you can search images by date, keyword, folder or size but it takes another 300 MB of hard-disk space. Some (possibly most) of this browser functionality can of course be packaged in the user's device. Browser presets are useful for directing users to the 'right' companies like Opera4 are active in developing added value embedded browser capabilities. An alternative is to use an online photo album like Kodak 5 or Snapfish 6 Kodak limit you 700 JPEGs of any size in an album but you can have as many albums as you like. Snapfish provide unlimited (JPEG or zip file) storage space on condition that you buy a print or gift item (mugs etcetera) from the Snapfish service once a year. If pictures with a resolution of more than nine megapixels are uploaded, Snapfish have t