I have one. It is pretty cool but it hasn't been real useful up until now. I haven't found many apps that support it.

I ended up just grabbing the clipboard app that yubikey puts out.

I tried using the static password feature by using it as part of my master password in 1password but the newer versions of 1password block using the clipboard in android (with good reason). It would be pretty awesome if password-managers added support for it.