I agree with your points, but allow me to clarify my statement: 802.16 as a PHY standard was not designed for mobile applications. 802.16e addressed mobile environments and while it works, it is not as robust as the original specification for stationary line-of-site operations. In sum, WiMAX was not originally designed to be truly mobile, where other standards are for the most part.

XOHM is indeed designed for the mobile user, but the technology that powers it has included mobile users as an afterthought. It's just my lowly opinion that doesn't count for anything, but I think WiMAX will be outdone in a few years, much like Moto's iDEN.