For most people debating whether the bottleneck is the processor on the phone or the wifi technology in use is pointless. Average broadband speeds across the US are still in the 10mbps range, and that's advertised, which you never truly reach. 802.11g is capable of advertised speeds of up to 54mpbs. In the vast majority of homes and businesses in the US the only time you would notice the difference between the two standards is during large file transfers within the LAN. You could, of course, be transferring large files back and forth on your home network to and from your phone, but for internet access and anything market related N is pointless.