Hello Frank,
A good review for a very good keyboard indeed.
You say the following :
"The SD card reader is not included with the U.S. keyboard and the only one that will work is the one supplied by Technics -- just under $200. "
The sd card reader is not included in Belgium but since I bought a kn7000 in England there was a card reader supplied.
I already had a sd card reader (not technics) and he also works. It costed only 25$. Look at ebay you will find one at this price.

Alain falling in love with his kn7000...I better not say this to loud or my wife will....