Do the new Sprint, T-Mobile and AT&T plans signal a big smartphone downturn?

[Wireless News]

Last week, Bloomberg reported.that T-Mobile is about to announce the first quarter of contract subscriber growth since 2010. The timing of the Bloomberg bombshell was interesting, because just one day later.Sprint unveiled new contract pricing. Sprint brought down the price of its cheapest mobile plan featuring unlimited data from $110 to $80. This new contract is fairly similar to the $70 unlimited plan.T-Mobile launched last March. If T-Mobile has discovered new traction with its bargain plan — and if Sprint is now feeling pressure to mimic the emphasis on budget customers — it could be.a sign that the U.S. mobile market is in trouble. U.S. carriers are also introducing or.refining new plans.that allow consumers to upgrade their smartphones more frequently;

More... (http://news.yahoo.com/sprint-t-mobile-t-plans-signal-big-smartphone-153524695.html)