With the convergence of the three networks, people have welcomed the dawn of the 3G era, once again speeding up our information world. If you indulged yourself in the 3G era without making progress, then you've fallen behind, because the 4G era is also beginning to emerge. Take a look at this Envy 4G conceptual mobile phone. One of its highlights is its quality; silicone gel material is used and it feels particularly good in the hand. It has a CPU graphics processor, carbon chipsets, an extra-large AMOLED 3G screen, and MasterMobile operating system. It looks more like a mini PC with Windows Phone 7 that supports customizable start-up screens and can download thousands of software.