Just to address this point.
Apple have two models, as you know, the WiFi and 3G + WiFi.
Allowing iPhone tethering with the WiFi model would destroy sales of the 3G + WiFi model ... you must know that's the reason why tethering is a non starter on the iPad.
True but i dont give 2 monkeys, i dont want to pay every month for a new subscription, surely you can understand how stupid this idea is. why why why would i pay for 2 data plans when i only need 1???
Be like Vavle, they dont make you buy the game twice.