My wife's didn't qualify but is definitely failing (she's getting around 6 hours of mild use, but her classroom has very bad signal which probably contributes). I ordered a replacement kit from Amazon and will likely do the swap tonight. I've done the same and also a screen replacement on her previous iPhone 4, so I'm fairly confident it shouldn't be much trouble (video walk-throughs don't show any "gotchas"). Any tips or gotchas to be pointed out by those of you who've done it yourself?