Lou,
Yes it does....however it goes back to the fact that it is a 40 mg d/l and if there is a glitch when transferring to the Tyros via USB (computer crash power out). It will take away Tyros's ability to know how to upgrade itself, so it would then have to go back to the factory in the US, to be reprogrammed.
Howver it is doable and that answers my concerns as to whether or not it is upgradable.
Terry