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I'm not sure if this Idea can actually be implemented but what I was thinking is that in the wallpaper system for KDE there could be an option where you can a different wallpaper for everyday.

The way I was thinking it could be implemented is by either having 1 Folder for the wallpapers and the images have a set naming convention e.g(01_05.jpg Note: Maybe different depending on the users preference.) or by having the main folder, then having a folder for the month and within the separate month folders there would be the images with the filenames of the day they show.

An Example of this would be Wallpaper/May/01.jpg

I had a third-party wallpaper manager in windows that did this, don't remember the name and I never used the function (too much work) but I can see how others would want to.

Hmm... can't you do this already using the "slideshow" wallpaper option? Just put 7 (or 366) images in the folder you pull from and set the duration to 24 hours.

You should already be able to make a wallpaper plugin which selects images based on the current day-of-week (similar to how the weather plugin selects wallpapers based on the current weather conditions).

k3vin: I've actually tried that but the thing that happens is that it goes back to the first one when you load up the OS which is one of the reasons I put this up.
airdrik: Most likely but to be honest the thing with plug-ins is that when you upgrade the system there is a chance that the plug-in wouldn't work on the upgraded system also for those who don't really want to fiddle about with installing plug-ins and those who want straight access to it with any hassell.

All Plasma wallpapers are plugins. Scripted plugins will not likely have many incompatibility issues. Plugins shipped with KDE will likely never have any issues, unless your system has issues.

Could this automatically set a specified wallpaper on a given day? Like on 25 December, I want a specific Christmas wallpaper, a friend's birthday a picture of him, independence day something patriotic etc.?

Plasma Wallpapers are capable of virtually anything, including what you listed. However I don't think one exists with that functionality at this time.

the slideshow wallpaper could add a 'remember image' checkbox...

It exists already, mandriva created it for it's new release; it's called time of the day, it uses an xml file and I guess it could be used to change wallpapers per day or month too (now it does so by the hours fading between them, gives a real cool effect, like dawn, day dusk night and dawn again)

edit: I would like to give you the source rpm but I have no clue which package includes it...

edit2:found it ftp://ftp.surfnet.nl/pub/os/Linux/distr ... .0.src.rpm

(hint if you are not on an rpm system, you can easily see and extract the content with gnome's file-roller (it does not have to many depencies on gnome actually)

You could try using the scripted wallpaper plugin(http://www.kde-look.org/content/show.php?content=115147) with the sample scripts(http://www.kde-look.org/content/show.php?content=117118).

In the sample scripts there is script called special_dates. To use it you add an image in the dates/ folder with the date you want it to show in. For example if you make an image called May_04.jpg inside the dates folder, that image will show on the 4th of May. Similarly you can have Jan_23.png or Dec_16.gif etc. On 'unspecial' dates, default.(jpg, png, bmp etc) is shown.

I think that comes quite close to what you wanted.

That's not be implemented(presentation/slide show), image services(photo frame)?

Also, we can use Weather wallpaper plugin.