Oh using the same lenses make perfect sense.
They are saving oodles of money not having to tweak and redesign warping and new chroma tweaks etc etc.
Instead they just plop the new panels and be done with it.
Turns out they where wrong.
Just upping resolution was not enough.
But HTC is in panic mode.
And they almost have been trying to claw their way back off the cliff since Samsung made the galaxy s3.