Maximum PC

Can anyone confirm that any Sprint customer, who wishes to cancel their contract do to unlimited data being taken away, may do so within 30 days of the effective data changes?

"When You Don't Have To Pay An Early Termination Fee
You aren't responsible for paying an Early Termination Fee when terminating Services: (a) provided on a month-to-month basis; (b) provided on a subscription basis that do not include a Term Commitment; (c) consistent with our published trial period return policy; or (d) in response to a materially adverse change that we make to the Agreement as described directly below."

Our Right To Change The Agreement & Your Related Rights
We may change any part of the Agreement at any time, including, but not limited to, rates, charges, how we calculate charges, discounts, coverage, technologies used to provide services, or your terms of Service. We will provide you notice of material changes—and we may provide you notice of non-material changes—in a manner consistent with this Agreement (see "Providing Notice To Each Other Under The Agreement" section). If a change we make to the Agreement is material and has a material adverse effect on Services under your Term Commitment, you may terminate each line of Service materially affected without incurring an Early Termination Fee only if you: (a) call us within 30 days after the effective date of the change; and (b) specifically advise us that you wish to cancel Services because of a material change to the Agreement that we have made.

If this was copied word for word from something they had in writing, it's correct.

Thank you, man.

Rule of thumb: If it's on paper, it's legally binding.
Exception: If it's an advertisement.
If you got it from their website, then it falls under the rule of thumb.
If you got it from a flyer, then it may or may not fall under the exception. Go to the website.
Either way, print out the page and save it for your records.