One X and one X+ have same housing. Only a strip of protruding plastic will need to be shaven off on the one x to fit on a one x+. I've done it.
Also, where can I find OEM housing for one x+? I rather have the one x+ housing as well.
HTC Magic -> HTC Hero -> Xperia X10 -> Nexus One -> SGS Vibrant i9000 -> Nexus S -> Xperia Arc -> SGSII i9100 -> Galaxy Nexus i9250
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