Palm Treo 755p

I was just wondering if the hardware on the 755P is the same internally as it was with the 700P and 700WX's or if it's new/different hardware inside? I've heard some of the treo line new models have just been same guts, different casing/face etc (maybe newer software) and want to know if that's the case with the 755P or if it is indeed new hardware.

Thanks!