Professional photographers beware, you may soon be replaced by robots. Sony's Party-shot Automatic Photographer is a small devise that sits on a flat surface and quietly takes pictures of people in view. It tilts and zooms to follow people around, waits for a smile, and uses the rule of thirds (composition) to automatically take pictures. It is not yet available, but you can pre-order it for about $150 ($149.99).
More at http://news.sel.sony.com/en/press_room/consumer/digital_imaging/digital_cameras/di_accessories/release/41275.html and http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921665954651&tab=featuresTab#features/