I haven't even seen Wimax1 yet, I'm not jumping for joy on Wimax2...
Heck, I would be more happy for longer battery life than download speeds on mobile network... Can you imagine the battery drain on a 1G down stream? If 4G already sucks battery like a mofo, that 4G V2 is going to be a short circuit the way it uses battery...
They are going to limit the down to somewhere sensible, so we would never see the full speed... I however would pay the full $30 for tether with 1GB down!