T-Mobile just began selling the iPhone 5 in April of this year; JD Power's poll took place from February to August, so it's probable that their lack of love for the iPhone is based on relative unfamiliarity. It'll be interesting to see how these figure compare in a year, now that the iPhone is squarely part of T-Mobile's product offerings.
Some bright news for beleaguered BlackBerry - the Z10 faired well in the poll. Nokia's Lumia 920 and Samsung's Galaxy Note II were also strong performers. JD Power's poll shows that Sprint users are more likely to factor features into their smartphone buying decisions, while T-Mobile customers are more price-driven.
What's your experience? Are you happy with the performance of your iPhone? Who's your carrier? Sound off in the comments!