4G Cellphone

I cant wait to experience the advantages of 4G technology. Since, I already maximized the features of 3.5G, 3GS or HSDPA in my cellphone or iPhone, I wonder how mobile phones running with 4G looks or what are the differences between the two. You may check the website of 3g4g.co.uk for more 4G details. The 4G technology will be able to support Interactive services like Video Conferencing (with more than 2 sites simultaneously), Wireless Internet,etc. The bandwidth would be much wider and data would be transferred at much higher rates. The cost of the data transfer would be comparatively very less and global mobility would be possible. The networks will be all IP networks based on IPv6. The antennas will be much smarter and improved access technologies like OFDM and MC-CDMA (Multi Carrier CDMA) will be used. Also the security features will be much better.