Evolved EDGE is a bolt-on extension to the GSM mobile telephony standard, which extends the previous EDGE upgrade to achieve theoretical speeds of up to 1 Mbit/s with relatively low cost and ease. Also called EDGE Evolution, it promises real world downlink speeds of up to 600kbit/s with seamless transitions to and from 3G coverage, which should serve to extend the life of GSM networks in areas where the additional cost to go full 3G isn't necessarily justified. As of 2009, there are no commercial networks which support Evolved EDGE standard (3GPP Rel-7).
There is a considerable research and development happening throughout the world for this new technology. As of 2008, there are many major wireless network & infrastructure providers who have invested in this technology. However successful trial has been made by Nokia Siemens and "one of China's leading operators" demonstrated in a live environment.
Read more about Evolved EDGE: Motivation
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