General Lists (extending to do lists ?)

It would be great to have a more general lists functionality than what the todo lists offer: for example a list of favorite radio stations, a list of images to show in your digital frame, a list, list of feed items (articles, podcasts, etc). The to-do lists could be used to do this if we have some additional attributes such as ‘value’ that can contain the actual link to a feed item path to the image, etc.
I can imagine that to make the functionality even more general it would be even better to have additional attributes like icon, or a more general data attribute that can contain any necessary data.