Sprint today announced that the wireless carrier is now offering a thirty day money back guarantee for users who sign up for service with Sprint. Sprint actually started offering 30 day trials back in 2008 after being sued by Minnesota's Attorney General for sneaky contract extensions. However, while the offer allowed you to escape paying an ETF if unsatisfied within 30 days, you still had to pay for any services used during that period, in addition to having to pay taxes and a restocking fee. Now, Sprint says they're refunding the full thirty day amount (with the exception of ringtones or other third-party services purchased):Sprint offers up a handy chart (above, right) highlighting how they're the only carrier currently doing this. Several operators recently began offering 30 day trials allowing users to escape paying ETFs within thirty days, but it had nothing to do with altruism. It was in response to settlements over ETF practices, or to fight off proposed laws aimed at ramping up wireless industry consumer protections. Verizon briefly offered a money-back guarantee, but then subsequently backtracked.

Sprint of course needs all the additional subscribers they can get after weathering their botched acquisition of Nextel, and the resulting customer fallout. Sprint's earnings last quarter indicate that their subscriber losses are slowing, and the company clearly hopes giving a little love to consumers may help improve things even more.