If they get rid of the $500 deposit requirement it will absolutely THRASH every other provider out there when it comes to customers with marginal or poor credit.
T-Mobile will get them ALL, with very limited risk to them (just the current month's charges)
If they then go to the next level, and make the "Take Control" a pay in advance for the current month plan, as do many other utilities (e.g. phone, etc), then they'll OWN that market with ZERO credit risk to them.
And people think the folks at T-Mo are stupid..... I think they're crazy - like a fox!