for throttle really is more like .0xmbps,maybe up to .10mbps
i have throttled many of these devices myself to test this,i think there may be some confusion on what is throttled or i mean the terminology,from what i have seen the devices that are around the .2mbps are not throttled or at least not by the carrier,again this is from what i have seen and doesnt mean its law (lol).
but the device itself can slow down to that mark by loosing some values,not sure why (yet),but hopefully will be soon.so i think everyone is calling there devices throttled when really they are just messed up and need correct values written to them and not dethrottled.
the key is finding why the devices loose those values,it is already known why loosing them will slow your devices down just not known why they fail to retain that block of info.