The world is larger than XOHM, Sprint, Clearwire, USA, or North America. There are tons of WiMAX networks out there, and they do not all compete with HS*PA(+) or LTE.

Calling WiMAX dead because LTE is going to be rolled out is irrational.

If the device WiMAX chipset supports limited frequencies it might be difficult to sell the N810WME elsewhere in the world. That, and not all of those WiMAX networks are residing in regions where people would like to spend money on a N810WME. Also, OMAP2 is by now old hardware. New OMAP3 and new Maemo and new UI paradigms are rolled the future.

If you got a netbook or laptop with an add-on module (BlueTooth, WiFi, HS*PA, WiMAX, or whatever it is) and this is using ExpressCard, MiniPCI Express, or USB you can very or relatively easy replace this with an other packet radio. On a device such as a tablet this is much harder, if not impossible for an end-user.