Yup, and depending on the amount TMobile is making off of the plan currently if $50 doesn't break their bank then it would be a great way to undercut the competitors (or at least force them to lower their pricing).

I really don't think a merger would help them that much. Especially considering Sprint and TMobile have incompatible networks. Sure they'll be in 3rd place, but then instead of two "slowly dying" companies you just have one big "slowly dying" company that now has to somehow combine the two networks.