More details have emerged about Sprint’s new decreasing-monthly ETF, thanks to a page from the Sprint customer service manual that fell into NeoWin’s hands. Basically the ETF on a 2-year contract is $200 after the first 30 days and until month 20, then it starts decreasing by $10 at month 19, until it gets to month 5 where it holds at $50. However, they say it’s their policy to waive it if there’s less than 30 days left. Once again, the decreasing-ETF will only apply to new contracts signed after November 2, 2008. Full scan of the internal document, inside…