Now have a more attractive tiled image grid. However, development is shut down because I am up against the 100 search-per-day limit set by google unless I enable billing. Next up: reduce the number of searches performed upon startup (I think searches are being requested that don't need to be. This may explain why there are only 50 images in the grid instead of 100, for example). For now, I can work toward getting the camera activity working.