@ Maverick.. u dont get unlimited data access for iPhone- for T-Mobile customers. i mentioned dat 'coz AT&T customers dont have any option they have to get the internet package they have. well, for T-mobile, if u've used the first generation unlocked iPhone then u might know that for $5.99.. u can use unlimited internet( dat's an option) well  even then  its  still  cheaper  isn't it-  $375.00 +  $5.99.. do the math..
     @latoboy.. if u read carefully i mentioned $10 more than previous plan for INTERNET. so now AT&T customers pay $30.00 for 3G data plan which they have to add to a qualified voice plan; which is $10.00 more than the previous $20.00.. the $70.00 is voice plan included, i guess..

    i only wish that the previous unlockin software worked with the new iPhone 3G too.. well, 1month n someones gonna unlock dat phone..