Ok, it was hard to choose, but I think I like this one the most
It was taken in a recent trip to Peru. The town is called Aguas Calientes or Town of Machu Picchu (Near the Machu Picchu ruins).
The application I used was Camera Zoom, but I didn't used any effect whatsoever. And the phone is an Sony Erricson Xperia X8 (I don't use it very much as a camera as I have a point & shoot that is far better and I tend to have it around).
A sunset this past winter here in the Chicago area. This lasted an unusually long time and became huge. No filter, stock cam, adjusted the shadows a little because of the parking lot lighting. Taken with an HTC Rezound.