Apparently, the third part vendor that ENS / Zen mentioned has just released the button.
steammonkey . com
price is 60 dollars. exactly the same as zen switch w/o zen logo. great for those w/ z2's that got the works.. i picked up 2 myself.
steammonkey . com
price is 60 dollars. exactly the same as zen switch w/o zen logo. great for those w/ z2's that got the works.. i picked up 2 myself.