This is an app / wallpaper changer / widget that continues the tradition started by Flickr many years ago. It retrieves images off the web (even from live webcams) and then displays them in a slideshow, either changing your background wallpaper entirely, or in a widget frame available in varying sizes.

It also allows you to display your own pictures (from your SDcard or internal memory).

There are oodles of options of every sort, and pre-selected image repositories (such as National Geographic Pic of the day). This is a very powerful app. It will re-size and filter images to fit the display space you have chosen, and even has filters to "throw out" images that are too dark (such as nightime webcam captures).

This complexity is at times overwhelming, and the interface not completely user friendly, which is why I took off a star. To get a simple slideshow playing in a widget took me over 2 hours of fiddling with settings, many of which are not very sensible (and the developer clearly doesn't speak English as a first language).

Further, there is a bug so that the image filter rotates some images at random to make them fit into the space, which is entirely undesirable.

lastly, the free version is supported by ads, but they only show up when you are changing settings, not during the slideshow. This is very unobtrusive and it is clear the developer is not trying to force ads down your throat.

There are simpler and more straightforward slideshow widgets, but this one is very powerful and if you can sort through the often cryptic settings, you can get quite a diverse set of images off the web!