basically i could not resist this thread dyamn you oldmaven (O: back with the 4G (O: okey here it goes: my take on this: all the technology based before 4G are based on packets circuit switching. this is the major bottleneck. now since IPv6 has been implemented/rolled out and 64bit addressing has been incorporated in major OS including windows. yes. surprising Windows started supporting 64 bit since the release of Windows 2003 SP1 with X64 patch. any other windows OS prior to it not supported. getting back to the main point here... 4G technology is IP based. hence you are independent of the radio access technology (although it is compatible). thus can contribute to cheaper devices. it will be based on ip packets switching with digital switches. now the bandwidth of 3G 384kbps paedesterian, 128 mobile car and 2Mbps stationary. 802.11g ; 802.11n and 4g are all based on OFMD (orthogonal frequency division multiplexing) but the catch for 802's is that they are still constrained by the range of 50 meters. they have devised wimax 802.16 [d..g] theoretically suppose to support 70Mbps over 50km radius but has a very poor mobility. and it barely supports 10Mbps over 2km range in the field. another catch is that it operates in the 2.4 GHz range.. and i need not mention why it is overcrowded (O: and the failure of WCDMA2000 i.e. QCOM version of 3g 4G has already achieved 100Mbps outdoor in the mobile and 1 Gbps in the indoor. which is far beyond the theoretical numbers in the standards for 802.11 or 802.16 ... ==================================================== but as always what do i know (O: