If you dont know what your plan is, you can look on your Bill Statement and it will be listed on the left side of the second page under the heading "Your Calling Plan".
Is it legal? I'm pretty sure that it is NOT legal seeing as how access to the default
WAP connection is locked until you activate that on your plan.
Those people who do use the free
WAP hack have disabled the
EVDO connection on their phones in order to avoid detection.