Sprint on Monday announced new family rate plans allowing up to 10 lines to share 20GB worth of data for $100 per month. It’s the first move in what is expected to be far more aggressive pricing under newly named CEO Marcelo Claure. Sprint is also offering to reimburse up to $350 of the costs of ending a contract with another carrier, a move first tried by rival T-Mobile. The plans will be available starting Friday. There are a bunch of caveats on Sprint’s new plans, with some of the pricing being offered only for a limited time. Also, to get the cheapest pricing, all customers must be coming from another carrier and bringing over their number. Even for those customers, the $100-per-month pricing is good only through the end of 2015 and requires signing up before the end of September.