This document provides an overview of various latest technologies including nano-technology, sixth sense technology, 4G technology, and blue eyes technology. It describes nano-technology as the study of controlling matter on an atomic or molecular scale and discusses some medical applications. Sixth sense technology is described as a wearable gesture interface that augments the physical world with digital information using hand gestures. It works by using a camera, projector, and mirror coupled in a pendant to capture gestures, process the information, and project images onto surfaces. 4G technology is defined as an extension of 3G providing higher bandwidth and more services through high quality audio/video streaming over the internet. Blue eyes technology aims to build machines that can observe and identify user actions